Home / 56,917,202.84-78,545,649.04-30,811,713.72

Finding the Fourth Proportional to 56,917,202.84, 78,545,649.04 and 30,811,713.72

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Solution

The fourth proportional to 56,917,202.84, 78,545,649.04 and 30,811,713.72 is: 42,520,115.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,917,202.84 : 78,545,649.04 = 30,811,713.72 : x
  2. Step 2: Convert to fraction form
    56,917,202.84/78,545,649.04 = 30,811,713.72/x
  3. Step 3: Cross multiply
    56,917,202.84x = 78,545,649.04 × 30,811,713.72
  4. Step 4: Simplify right side
    56,917,202.84x = 2,420,126,052,172,073
  5. Step 5: Solve for x
    x = 2,420,126,052,172,073/56,917,202.84
  6. Step 6: Final answer
    x = 42,520,115.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.