Home / 42,463,704.51-63,695,722.83-12,920,188.88

Finding the Fourth Proportional to 42,463,704.51, 63,695,722.83 and 12,920,188.88

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Solution

The fourth proportional to 42,463,704.51, 63,695,722.83 and 12,920,188.88 is: 19,380,333.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,463,704.51 : 63,695,722.83 = 12,920,188.88 : x
  2. Step 2: Convert to fraction form
    42,463,704.51/63,695,722.83 = 12,920,188.88/x
  3. Step 3: Cross multiply
    42,463,704.51x = 63,695,722.83 × 12,920,188.88
  4. Step 4: Simplify right side
    42,463,704.51x = 822,960,769,811,728.12
  5. Step 5: Solve for x
    x = 822,960,769,811,728.12/42,463,704.51
  6. Step 6: Final answer
    x = 19,380,333.85

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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.