Home / 1,195,890,672.90-1,793,836,009.35-550,918,128.90

Finding the Fourth Proportional to 1,195,890,672.90, 1,793,836,009.35 and 550,918,128.90

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Solution

The fourth proportional to 1,195,890,672.90, 1,793,836,009.35 and 550,918,128.90 is: 826,377,193.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,195,890,672.90 : 1,793,836,009.35 = 550,918,128.90 : x
  2. Step 2: Convert to fraction form
    1,195,890,672.90/1,793,836,009.35 = 550,918,128.90/x
  3. Step 3: Cross multiply
    1,195,890,672.90x = 1,793,836,009.35 × 550,918,128.90
  4. Step 4: Simplify right side
    1,195,890,672.90x = 988,256,777,824,544,768
  5. Step 5: Solve for x
    x = 988,256,777,824,544,768/1,195,890,672.90
  6. Step 6: Final answer
    x = 826,377,193.35

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Half scale
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Double scale
Find fourth proportional to 1,195,890,673.90, 1,793,836,010.85 and 550,918,129.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.