Home / 57,246,322.25-78,999,864.90-31,140,777.81

Finding the Fourth Proportional to 57,246,322.25, 78,999,864.90 and 31,140,777.81

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Solution

The fourth proportional to 57,246,322.25, 78,999,864.90 and 31,140,777.81 is: 42,974,240.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,246,322.25 : 78,999,864.90 = 31,140,777.81 : x
  2. Step 2: Convert to fraction form
    57,246,322.25/78,999,864.90 = 31,140,777.81/x
  3. Step 3: Cross multiply
    57,246,322.25x = 78,999,864.90 × 31,140,777.81
  4. Step 4: Simplify right side
    57,246,322.25x = 2,460,117,239,870,918
  5. Step 5: Solve for x
    x = 2,460,117,239,870,918/57,246,322.25
  6. Step 6: Final answer
    x = 42,974,240.85

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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.