Home / 100,277,997.30-150,416,995.95-86,407,387.20

Finding the Fourth Proportional to 100,277,997.30, 150,416,995.95 and 86,407,387.20

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Solution

The fourth proportional to 100,277,997.30, 150,416,995.95 and 86,407,387.20 is: 129,611,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,277,997.30 : 150,416,995.95 = 86,407,387.20 : x
  2. Step 2: Convert to fraction form
    100,277,997.30/150,416,995.95 = 86,407,387.20/x
  3. Step 3: Cross multiply
    100,277,997.30x = 150,416,995.95 × 86,407,387.20
  4. Step 4: Simplify right side
    100,277,997.30x = 12,997,139,610,512,482
  5. Step 5: Solve for x
    x = 12,997,139,610,512,482/100,277,997.30
  6. Step 6: Final answer
    x = 129,611,080.80

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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.