Home / 149,563,423.85-206,431,962.23-87,703,691.45

Finding the Fourth Proportional to 149,563,423.85, 206,431,962.23 and 87,703,691.45

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Solution

The fourth proportional to 149,563,423.85, 206,431,962.23 and 87,703,691.45 is: 121,051,288.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,563,423.85 : 206,431,962.23 = 87,703,691.45 : x
  2. Step 2: Convert to fraction form
    149,563,423.85/206,431,962.23 = 87,703,691.45/x
  3. Step 3: Cross multiply
    149,563,423.85x = 206,431,962.23 × 87,703,691.45
  4. Step 4: Simplify right side
    149,563,423.85x = 18,104,845,119,367,292
  5. Step 5: Solve for x
    x = 18,104,845,119,367,292/149,563,423.85
  6. Step 6: Final answer
    x = 121,051,288.17

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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.