Home / 57,087,323.25-78,780,546.59-30,981,834.87

Finding the Fourth Proportional to 57,087,323.25, 78,780,546.59 and 30,981,834.87

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Solution

The fourth proportional to 57,087,323.25, 78,780,546.59 and 30,981,834.87 is: 42,754,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,087,323.25 : 78,780,546.59 = 30,981,834.87 : x
  2. Step 2: Convert to fraction form
    57,087,323.25/78,780,546.59 = 30,981,834.87/x
  3. Step 3: Cross multiply
    57,087,323.25x = 78,780,546.59 × 30,981,834.87
  4. Step 4: Simplify right side
    57,087,323.25x = 2,440,765,885,264,812.50
  5. Step 5: Solve for x
    x = 2,440,765,885,264,812.50/57,087,323.25
  6. Step 6: Final answer
    x = 42,754,954.10

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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.