Home / 657,540,435.09-907,061,778.31-406,564,599.78

Finding the Fourth Proportional to 657,540,435.09, 907,061,778.31 and 406,564,599.78

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Solution

The fourth proportional to 657,540,435.09, 907,061,778.31 and 406,564,599.78 is: 560,846,434.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,540,435.09 : 907,061,778.31 = 406,564,599.78 : x
  2. Step 2: Convert to fraction form
    657,540,435.09/907,061,778.31 = 406,564,599.78/x
  3. Step 3: Cross multiply
    657,540,435.09x = 907,061,778.31 × 406,564,599.78
  4. Step 4: Simplify right side
    657,540,435.09x = 368,779,208,874,340,160
  5. Step 5: Solve for x
    x = 368,779,208,874,340,160/657,540,435.09
  6. Step 6: Final answer
    x = 560,846,434.98

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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.