Home / 57,087,301.50-78,780,516.57-30,981,813.12

Finding the Fourth Proportional to 57,087,301.50, 78,780,516.57 and 30,981,813.12

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Solution

The fourth proportional to 57,087,301.50, 78,780,516.57 and 30,981,813.12 is: 42,754,924.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,087,301.50 : 78,780,516.57 = 30,981,813.12 : x
  2. Step 2: Convert to fraction form
    57,087,301.50/78,780,516.57 = 30,981,813.12/x
  3. Step 3: Cross multiply
    57,087,301.50x = 78,780,516.57 × 30,981,813.12
  4. Step 4: Simplify right side
    57,087,301.50x = 2,440,763,241,868,803.50
  5. Step 5: Solve for x
    x = 2,440,763,241,868,803.50/57,087,301.50
  6. Step 6: Final answer
    x = 42,754,924.09

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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.