Home / 1,137,239,996.40-1,569,633,661.08-780,495,778.80

Finding the Fourth Proportional to 1,137,239,996.40, 1,569,633,661.08 and 780,495,778.80

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Solution

The fourth proportional to 1,137,239,996.40, 1,569,633,661.08 and 780,495,778.80 is: 1,077,250,580.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,239,996.40 : 1,569,633,661.08 = 780,495,778.80 : x
  2. Step 2: Convert to fraction form
    1,137,239,996.40/1,569,633,661.08 = 780,495,778.80/x
  3. Step 3: Cross multiply
    1,137,239,996.40x = 1,569,633,661.08 × 780,495,778.80
  4. Step 4: Simplify right side
    1,137,239,996.40x = 1,225,092,446,735,329,792
  5. Step 5: Solve for x
    x = 1,225,092,446,735,329,792/1,137,239,996.40
  6. Step 6: Final answer
    x = 1,077,250,580.89

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.