Home / 266,955,338.60-400,433,007.90-85,220,887.40

Finding the Fourth Proportional to 266,955,338.60, 400,433,007.90 and 85,220,887.40

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Solution

The fourth proportional to 266,955,338.60, 400,433,007.90 and 85,220,887.40 is: 127,831,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,955,338.60 : 400,433,007.90 = 85,220,887.40 : x
  2. Step 2: Convert to fraction form
    266,955,338.60/400,433,007.90 = 85,220,887.40/x
  3. Step 3: Cross multiply
    266,955,338.60x = 400,433,007.90 × 85,220,887.40
  4. Step 4: Simplify right side
    266,955,338.60x = 34,125,256,277,489,212
  5. Step 5: Solve for x
    x = 34,125,256,277,489,212/266,955,338.60
  6. Step 6: Final answer
    x = 127,831,331.10

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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.