Home / 154,854,470.77-213,704,808.76-84,286,672.86

Finding the Fourth Proportional to 154,854,470.77, 213,704,808.76 and 84,286,672.86

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Solution

The fourth proportional to 154,854,470.77, 213,704,808.76 and 84,286,672.86 is: 116,318,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,854,470.77 : 213,704,808.76 = 84,286,672.86 : x
  2. Step 2: Convert to fraction form
    154,854,470.77/213,704,808.76 = 84,286,672.86/x
  3. Step 3: Cross multiply
    154,854,470.77x = 213,704,808.76 × 84,286,672.86
  4. Step 4: Simplify right side
    154,854,470.77x = 18,012,467,305,469,732
  5. Step 5: Solve for x
    x = 18,012,467,305,469,732/154,854,470.77
  6. Step 6: Final answer
    x = 116,318,677.89

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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.