Home / 91,004,038.20-136,506,057.30-39,985,702.20

Finding the Fourth Proportional to 91,004,038.20, 136,506,057.30 and 39,985,702.20

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Solution

The fourth proportional to 91,004,038.20, 136,506,057.30 and 39,985,702.20 is: 59,978,553.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,004,038.20 : 136,506,057.30 = 39,985,702.20 : x
  2. Step 2: Convert to fraction form
    91,004,038.20/136,506,057.30 = 39,985,702.20/x
  3. Step 3: Cross multiply
    91,004,038.20x = 136,506,057.30 × 39,985,702.20
  4. Step 4: Simplify right side
    91,004,038.20x = 5,458,290,555,693,937
  5. Step 5: Solve for x
    x = 5,458,290,555,693,937/91,004,038.20
  6. Step 6: Final answer
    x = 59,978,553.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.