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Finding the Fourth Proportional to 14,679,985.90, 22,019,978.85 and 3,898,950.70

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Solution

The fourth proportional to 14,679,985.90, 22,019,978.85 and 3,898,950.70 is: 5,848,426.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679,985.90 : 22,019,978.85 = 3,898,950.70 : x
  2. Step 2: Convert to fraction form
    14,679,985.90/22,019,978.85 = 3,898,950.70/x
  3. Step 3: Cross multiply
    14,679,985.90x = 22,019,978.85 × 3,898,950.70
  4. Step 4: Simplify right side
    14,679,985.90x = 85,854,811,951,192.70
  5. Step 5: Solve for x
    x = 85,854,811,951,192.70/14,679,985.90
  6. Step 6: Final answer
    x = 5,848,426.05

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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.