Home / 115,033,014,920.55-172,549,522,380.83-87,138,739,712.55

Finding the Fourth Proportional to 115,033,014,920.55, 172,549,522,380.83 and 87,138,739,712.55

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Solution

The fourth proportional to 115,033,014,920.55, 172,549,522,380.83 and 87,138,739,712.55 is: 130,708,109,568.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,033,014,920.55 : 172,549,522,380.83 = 87,138,739,712.55 : x
  2. Step 2: Convert to fraction form
    115,033,014,920.55/172,549,522,380.83 = 87,138,739,712.55/x
  3. Step 3: Cross multiply
    115,033,014,920.55x = 172,549,522,380.83 × 87,138,739,712.55
  4. Step 4: Simplify right side
    115,033,014,920.55x = 15,035,747,918,267,964,981,248
  5. Step 5: Solve for x
    x = 15,035,747,918,267,964,981,248/115,033,014,920.55
  6. Step 6: Final answer
    x = 130,708,109,568.83

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Double scale
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1.5x scale

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.