Home / 87,480,066.80-131,220,100.20-85,968,412.40

Finding the Fourth Proportional to 87,480,066.80, 131,220,100.20 and 85,968,412.40

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Solution

The fourth proportional to 87,480,066.80, 131,220,100.20 and 85,968,412.40 is: 128,952,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,480,066.80 : 131,220,100.20 = 85,968,412.40 : x
  2. Step 2: Convert to fraction form
    87,480,066.80/131,220,100.20 = 85,968,412.40/x
  3. Step 3: Cross multiply
    87,480,066.80x = 131,220,100.20 × 85,968,412.40
  4. Step 4: Simplify right side
    87,480,066.80x = 11,280,783,689,162,924
  5. Step 5: Solve for x
    x = 11,280,783,689,162,924/87,480,066.80
  6. Step 6: Final answer
    x = 128,952,618.60

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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.