Home / 118,728,325.71-163,841,128.25-65,802,778.07

Finding the Fourth Proportional to 118,728,325.71, 163,841,128.25 and 65,802,778.07

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Solution

The fourth proportional to 118,728,325.71, 163,841,128.25 and 65,802,778.07 is: 90,805,638.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,728,325.71 : 163,841,128.25 = 65,802,778.07 : x
  2. Step 2: Convert to fraction form
    118,728,325.71/163,841,128.25 = 65,802,778.07/x
  3. Step 3: Cross multiply
    118,728,325.71x = 163,841,128.25 × 65,802,778.07
  4. Step 4: Simplify right side
    118,728,325.71x = 10,781,201,399,824,938
  5. Step 5: Solve for x
    x = 10,781,201,399,824,938/118,728,325.71
  6. Step 6: Final answer
    x = 90,805,638.30

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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.