Home / 71,472,836.46-107,221,212.72-56,119,506.78

Finding the Fourth Proportional to 71,472,836.46, 107,221,212.72 and 56,119,506.78

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Solution

The fourth proportional to 71,472,836.46, 107,221,212.72 and 56,119,506.78 is: 84,188,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,472,836.46 : 107,221,212.72 = 56,119,506.78 : x
  2. Step 2: Convert to fraction form
    71,472,836.46/107,221,212.72 = 56,119,506.78/x
  3. Step 3: Cross multiply
    71,472,836.46x = 107,221,212.72 × 56,119,506.78
  4. Step 4: Simplify right side
    71,472,836.46x = 6,017,201,574,199,862
  5. Step 5: Solve for x
    x = 6,017,201,574,199,862/71,472,836.46
  6. Step 6: Final answer
    x = 84,188,649.45

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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.