Home / 89,423,999.60-134,135,999.40-31,981,132.40

Finding the Fourth Proportional to 89,423,999.60, 134,135,999.40 and 31,981,132.40

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Solution

The fourth proportional to 89,423,999.60, 134,135,999.40 and 31,981,132.40 is: 47,971,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,423,999.60 : 134,135,999.40 = 31,981,132.40 : x
  2. Step 2: Convert to fraction form
    89,423,999.60/134,135,999.40 = 31,981,132.40/x
  3. Step 3: Cross multiply
    89,423,999.60x = 134,135,999.40 × 31,981,132.40
  4. Step 4: Simplify right side
    89,423,999.60x = 4,289,821,156,417,720.50
  5. Step 5: Solve for x
    x = 4,289,821,156,417,720.50/89,423,999.60
  6. Step 6: Final answer
    x = 47,971,698.60

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1.5x scale

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.