Home / 42,287,416.80-63,431,125.20-20,764,056.30

Finding the Fourth Proportional to 42,287,416.80, 63,431,125.20 and 20,764,056.30

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Solution

The fourth proportional to 42,287,416.80, 63,431,125.20 and 20,764,056.30 is: 31,146,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,287,416.80 : 63,431,125.20 = 20,764,056.30 : x
  2. Step 2: Convert to fraction form
    42,287,416.80/63,431,125.20 = 20,764,056.30/x
  3. Step 3: Cross multiply
    42,287,416.80x = 63,431,125.20 × 20,764,056.30
  4. Step 4: Simplify right side
    42,287,416.80x = 1,317,087,454,825,148.75
  5. Step 5: Solve for x
    x = 1,317,087,454,825,148.75/42,287,416.80
  6. Step 6: Final answer
    x = 31,146,084.45

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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.