Home / 57,091,150.01-78,785,864.78-30,985,668.18

Finding the Fourth Proportional to 57,091,150.01, 78,785,864.78 and 30,985,668.18

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Solution

The fourth proportional to 57,091,150.01, 78,785,864.78 and 30,985,668.18 is: 42,760,264.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091,150.01 : 78,785,864.78 = 30,985,668.18 : x
  2. Step 2: Convert to fraction form
    57,091,150.01/78,785,864.78 = 30,985,668.18/x
  3. Step 3: Cross multiply
    57,091,150.01x = 78,785,864.78 × 30,985,668.18
  4. Step 4: Simplify right side
    57,091,150.01x = 2,441,232,663,192,500.50
  5. Step 5: Solve for x
    x = 2,441,232,663,192,500.50/57,091,150.01
  6. Step 6: Final answer
    x = 42,760,264.30

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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.