Home / 145,156,937.70-217,735,406.55-49,418,825.70

Finding the Fourth Proportional to 145,156,937.70, 217,735,406.55 and 49,418,825.70

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Solution

The fourth proportional to 145,156,937.70, 217,735,406.55 and 49,418,825.70 is: 74,128,238.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156,937.70 : 217,735,406.55 = 49,418,825.70 : x
  2. Step 2: Convert to fraction form
    145,156,937.70/217,735,406.55 = 49,418,825.70/x
  3. Step 3: Cross multiply
    145,156,937.70x = 217,735,406.55 × 49,418,825.70
  4. Step 4: Simplify right side
    145,156,937.70x = 10,760,228,105,013,090
  5. Step 5: Solve for x
    x = 10,760,228,105,013,090/145,156,937.70
  6. Step 6: Final answer
    x = 74,128,238.55

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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.