Home / 87,939,110.10-131,908,665.15-74,901,090.90

Finding the Fourth Proportional to 87,939,110.10, 131,908,665.15 and 74,901,090.90

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Solution

The fourth proportional to 87,939,110.10, 131,908,665.15 and 74,901,090.90 is: 112,351,636.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,939,110.10 : 131,908,665.15 = 74,901,090.90 : x
  2. Step 2: Convert to fraction form
    87,939,110.10/131,908,665.15 = 74,901,090.90/x
  3. Step 3: Cross multiply
    87,939,110.10x = 131,908,665.15 × 74,901,090.90
  4. Step 4: Simplify right side
    87,939,110.10x = 9,880,102,918,897,814
  5. Step 5: Solve for x
    x = 9,880,102,918,897,814/87,939,110.10
  6. Step 6: Final answer
    x = 112,351,636.35

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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.