Home / 42,656,020.20-63,984,030.30-18,721,492.20

Finding the Fourth Proportional to 42,656,020.20, 63,984,030.30 and 18,721,492.20

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Solution

The fourth proportional to 42,656,020.20, 63,984,030.30 and 18,721,492.20 is: 28,082,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,656,020.20 : 63,984,030.30 = 18,721,492.20 : x
  2. Step 2: Convert to fraction form
    42,656,020.20/63,984,030.30 = 18,721,492.20/x
  3. Step 3: Cross multiply
    42,656,020.20x = 63,984,030.30 × 18,721,492.20
  4. Step 4: Simplify right side
    42,656,020.20x = 1,197,876,524,186,013.50
  5. Step 5: Solve for x
    x = 1,197,876,524,186,013.50/42,656,020.20
  6. Step 6: Final answer
    x = 28,082,238.30

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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.