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Finding the Fourth Proportional to 14,679,985.40, 22,019,978.10 and 3,898,950.20

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Solution

The fourth proportional to 14,679,985.40, 22,019,978.10 and 3,898,950.20 is: 5,848,425.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679,985.40 : 22,019,978.10 = 3,898,950.20 : x
  2. Step 2: Convert to fraction form
    14,679,985.40/22,019,978.10 = 3,898,950.20/x
  3. Step 3: Cross multiply
    14,679,985.40x = 22,019,978.10 × 3,898,950.20
  4. Step 4: Simplify right side
    14,679,985.40x = 85,854,798,016,990.62
  5. Step 5: Solve for x
    x = 85,854,798,016,990.62/14,679,985.40
  6. Step 6: Final answer
    x = 5,848,425.30

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Similar ratio
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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.