Home / 56,754,815.73-78,321,644.92-30,649,332.79

Finding the Fourth Proportional to 56,754,815.73, 78,321,644.92 and 30,649,332.79

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Solution

The fourth proportional to 56,754,815.73, 78,321,644.92 and 30,649,332.79 is: 42,296,078.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,754,815.73 : 78,321,644.92 = 30,649,332.79 : x
  2. Step 2: Convert to fraction form
    56,754,815.73/78,321,644.92 = 30,649,332.79/x
  3. Step 3: Cross multiply
    56,754,815.73x = 78,321,644.92 × 30,649,332.79
  4. Step 4: Simplify right side
    56,754,815.73x = 2,400,506,159,813,293
  5. Step 5: Solve for x
    x = 2,400,506,159,813,293/56,754,815.73
  6. Step 6: Final answer
    x = 42,296,078.82

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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.