Home / 438,632,881.38-657,944,247.51-106,641,774.90

Finding the Fourth Proportional to 438,632,881.38, 657,944,247.51 and 106,641,774.90

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Solution

The fourth proportional to 438,632,881.38, 657,944,247.51 and 106,641,774.90 is: 159,961,428.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,632,881.38 : 657,944,247.51 = 106,641,774.90 : x
  2. Step 2: Convert to fraction form
    438,632,881.38/657,944,247.51 = 106,641,774.90/x
  3. Step 3: Cross multiply
    438,632,881.38x = 657,944,247.51 × 106,641,774.90
  4. Step 4: Simplify right side
    438,632,881.38x = 70,164,342,339,711,312
  5. Step 5: Solve for x
    x = 70,164,342,339,711,312/438,632,881.38
  6. Step 6: Final answer
    x = 159,961,428.61

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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.