Home / 148,553,318.12-205,018,309.86-83,363,481.32

Finding the Fourth Proportional to 148,553,318.12, 205,018,309.86 and 83,363,481.32

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Solution

The fourth proportional to 148,553,318.12, 205,018,309.86 and 83,363,481.32 is: 115,049,870.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,553,318.12 : 205,018,309.86 = 83,363,481.32 : x
  2. Step 2: Convert to fraction form
    148,553,318.12/205,018,309.86 = 83,363,481.32/x
  3. Step 3: Cross multiply
    148,553,318.12x = 205,018,309.86 × 83,363,481.32
  4. Step 4: Simplify right side
    148,553,318.12x = 17,091,040,044,272,082
  5. Step 5: Solve for x
    x = 17,091,040,044,272,082/148,553,318.12
  6. Step 6: Final answer
    x = 115,049,870.72

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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.