Home / 162,317,352.60-243,628,244.10-85,695,370.20

Finding the Fourth Proportional to 162,317,352.60, 243,628,244.10 and 85,695,370.20

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Solution

The fourth proportional to 162,317,352.60, 243,628,244.10 and 85,695,370.20 is: 128,623,417.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,317,352.60 : 243,628,244.10 = 85,695,370.20 : x
  2. Step 2: Convert to fraction form
    162,317,352.60/243,628,244.10 = 85,695,370.20/x
  3. Step 3: Cross multiply
    162,317,352.60x = 243,628,244.10 × 85,695,370.20
  4. Step 4: Simplify right side
    162,317,352.60x = 20,877,812,569,325,468
  5. Step 5: Solve for x
    x = 20,877,812,569,325,468/162,317,352.60
  6. Step 6: Final answer
    x = 128,623,417.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.