Home / 120,357,011.72-166,097,438.52-67,434,175.88

Finding the Fourth Proportional to 120,357,011.72, 166,097,438.52 and 67,434,175.88

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Solution

The fourth proportional to 120,357,011.72, 166,097,438.52 and 67,434,175.88 is: 93,061,830.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,357,011.72 : 166,097,438.52 = 67,434,175.88 : x
  2. Step 2: Convert to fraction form
    120,357,011.72/166,097,438.52 = 67,434,175.88/x
  3. Step 3: Cross multiply
    120,357,011.72x = 166,097,438.52 × 67,434,175.88
  4. Step 4: Simplify right side
    120,357,011.72x = 11,200,643,882,375,166
  5. Step 5: Solve for x
    x = 11,200,643,882,375,166/120,357,011.72
  6. Step 6: Final answer
    x = 93,061,830.98

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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.