Home / 120,118,044.20-165,763,122.18-65,113,730.60

Finding the Fourth Proportional to 120,118,044.20, 165,763,122.18 and 65,113,730.60

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Solution

The fourth proportional to 120,118,044.20, 165,763,122.18 and 65,113,730.60 is: 89,857,068.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,118,044.20 : 165,763,122.18 = 65,113,730.60 : x
  2. Step 2: Convert to fraction form
    120,118,044.20/165,763,122.18 = 65,113,730.60/x
  3. Step 3: Cross multiply
    120,118,044.20x = 165,763,122.18 × 65,113,730.60
  4. Step 4: Simplify right side
    120,118,044.20x = 10,793,455,281,043,406
  5. Step 5: Solve for x
    x = 10,793,455,281,043,406/120,118,044.20
  6. Step 6: Final answer
    x = 89,857,068.13

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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.