Home / 57,090,658.94-78,785,865.16-30,985,489.70

Finding the Fourth Proportional to 57,090,658.94, 78,785,865.16 and 30,985,489.70

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Solution

The fourth proportional to 57,090,658.94, 78,785,865.16 and 30,985,489.70 is: 42,760,386.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,090,658.94 : 78,785,865.16 = 30,985,489.70 : x
  2. Step 2: Convert to fraction form
    57,090,658.94/78,785,865.16 = 30,985,489.70/x
  3. Step 3: Cross multiply
    57,090,658.94x = 78,785,865.16 × 30,985,489.70
  4. Step 4: Simplify right side
    57,090,658.94x = 2,441,218,612,949,376
  5. Step 5: Solve for x
    x = 2,441,218,612,949,376/57,090,658.94
  6. Step 6: Final answer
    x = 42,760,386.00

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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.