Home / 42,321,856.20-63,482,784.30-13,588,612.80

Finding the Fourth Proportional to 42,321,856.20, 63,482,784.30 and 13,588,612.80

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Solution

The fourth proportional to 42,321,856.20, 63,482,784.30 and 13,588,612.80 is: 20,382,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,321,856.20 : 63,482,784.30 = 13,588,612.80 : x
  2. Step 2: Convert to fraction form
    42,321,856.20/63,482,784.30 = 13,588,612.80/x
  3. Step 3: Cross multiply
    42,321,856.20x = 63,482,784.30 × 13,588,612.80
  4. Step 4: Simplify right side
    42,321,856.20x = 862,642,975,318,619
  5. Step 5: Solve for x
    x = 862,642,975,318,619/42,321,856.20
  6. Step 6: Final answer
    x = 20,382,919.20

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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.