Home / 172,346,746.80-258,520,120.20-86,098,465.20

Finding the Fourth Proportional to 172,346,746.80, 258,520,120.20 and 86,098,465.20

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Solution

The fourth proportional to 172,346,746.80, 258,520,120.20 and 86,098,465.20 is: 129,147,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,346,746.80 : 258,520,120.20 = 86,098,465.20 : x
  2. Step 2: Convert to fraction form
    172,346,746.80/258,520,120.20 = 86,098,465.20/x
  3. Step 3: Cross multiply
    172,346,746.80x = 258,520,120.20 × 86,098,465.20
  4. Step 4: Simplify right side
    172,346,746.80x = 22,258,185,572,539,516
  5. Step 5: Solve for x
    x = 22,258,185,572,539,516/172,346,746.80
  6. Step 6: Final answer
    x = 129,147,697.80

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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.