Home / 42,582,416.40-63,800,141.40-19,816,621.20

Finding the Fourth Proportional to 42,582,416.40, 63,800,141.40 and 19,816,621.20

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Solution

The fourth proportional to 42,582,416.40, 63,800,141.40 and 19,816,621.20 is: 29,690,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,582,416.40 : 63,800,141.40 = 19,816,621.20 : x
  2. Step 2: Convert to fraction form
    42,582,416.40/63,800,141.40 = 19,816,621.20/x
  3. Step 3: Cross multiply
    42,582,416.40x = 63,800,141.40 × 19,816,621.20
  4. Step 4: Simplify right side
    42,582,416.40x = 1,264,303,234,630,237.50
  5. Step 5: Solve for x
    x = 1,264,303,234,630,237.50/42,582,416.40
  6. Step 6: Final answer
    x = 29,690,734.85

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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.