Home / 144,991,325.20-217,486,987.80-87,660,432.40

Finding the Fourth Proportional to 144,991,325.20, 217,486,987.80 and 87,660,432.40

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Solution

The fourth proportional to 144,991,325.20, 217,486,987.80 and 87,660,432.40 is: 131,490,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,991,325.20 : 217,486,987.80 = 87,660,432.40 : x
  2. Step 2: Convert to fraction form
    144,991,325.20/217,486,987.80 = 87,660,432.40/x
  3. Step 3: Cross multiply
    144,991,325.20x = 217,486,987.80 × 87,660,432.40
  4. Step 4: Simplify right side
    144,991,325.20x = 19,065,003,391,921,528
  5. Step 5: Solve for x
    x = 19,065,003,391,921,528/144,991,325.20
  6. Step 6: Final answer
    x = 131,490,648.60

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Similar ratio
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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.