Home / 42,287,115.20-63,377,528.70-20,675,181.20

Finding the Fourth Proportional to 42,287,115.20, 63,377,528.70 and 20,675,181.20

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Solution

The fourth proportional to 42,287,115.20, 63,377,528.70 and 20,675,181.20 is: 30,986,788.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,287,115.20 : 63,377,528.70 = 20,675,181.20 : x
  2. Step 2: Convert to fraction form
    42,287,115.20/63,377,528.70 = 20,675,181.20/x
  3. Step 3: Cross multiply
    42,287,115.20x = 63,377,528.70 × 20,675,181.20
  4. Step 4: Simplify right side
    42,287,115.20x = 1,310,341,889,880,700.50
  5. Step 5: Solve for x
    x = 1,310,341,889,880,700.50/42,287,115.20
  6. Step 6: Final answer
    x = 30,986,788.38

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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.