Home / 653,429,200.80-980,143,801.20-648,894,237.60

Finding the Fourth Proportional to 653,429,200.80, 980,143,801.20 and 648,894,237.60

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Solution

The fourth proportional to 653,429,200.80, 980,143,801.20 and 648,894,237.60 is: 973,341,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,429,200.80 : 980,143,801.20 = 648,894,237.60 : x
  2. Step 2: Convert to fraction form
    653,429,200.80/980,143,801.20 = 648,894,237.60/x
  3. Step 3: Cross multiply
    653,429,200.80x = 980,143,801.20 × 648,894,237.60
  4. Step 4: Simplify right side
    653,429,200.80x = 636,009,664,618,040,064
  5. Step 5: Solve for x
    x = 636,009,664,618,040,064/653,429,200.80
  6. Step 6: Final answer
    x = 973,341,356.40

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Double scale
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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.