Home / 120,170,044.32-165,834,705.12-65,165,886.24

Finding the Fourth Proportional to 120,170,044.32, 165,834,705.12 and 65,165,886.24

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Solution

The fourth proportional to 120,170,044.32, 165,834,705.12 and 65,165,886.24 is: 89,928,946.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,170,044.32 : 165,834,705.12 = 65,165,886.24 : x
  2. Step 2: Convert to fraction form
    120,170,044.32/165,834,705.12 = 65,165,886.24/x
  3. Step 3: Cross multiply
    120,170,044.32x = 165,834,705.12 × 65,165,886.24
  4. Step 4: Simplify right side
    120,170,044.32x = 10,806,765,528,493,866
  5. Step 5: Solve for x
    x = 10,806,765,528,493,866/120,170,044.32
  6. Step 6: Final answer
    x = 89,928,946.85

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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.