Home / 120,097,005.28-165,749,216.24-67,176,653.92

Finding the Fourth Proportional to 120,097,005.28, 165,749,216.24 and 67,176,653.92

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Solution

The fourth proportional to 120,097,005.28, 165,749,216.24 and 67,176,653.92 is: 92,712,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,097,005.28 : 165,749,216.24 = 67,176,653.92 : x
  2. Step 2: Convert to fraction form
    120,097,005.28/165,749,216.24 = 67,176,653.92/x
  3. Step 3: Cross multiply
    120,097,005.28x = 165,749,216.24 × 67,176,653.92
  4. Step 4: Simplify right side
    120,097,005.28x = 11,134,477,736,865,724
  5. Step 5: Solve for x
    x = 11,134,477,736,865,724/120,097,005.28
  6. Step 6: Final answer
    x = 92,712,367.90

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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.