Home / 111,506,711.20-167,260,066.80-87,320,240.80

Finding the Fourth Proportional to 111,506,711.20, 167,260,066.80 and 87,320,240.80

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Solution

The fourth proportional to 111,506,711.20, 167,260,066.80 and 87,320,240.80 is: 130,980,361.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,506,711.20 : 167,260,066.80 = 87,320,240.80 : x
  2. Step 2: Convert to fraction form
    111,506,711.20/167,260,066.80 = 87,320,240.80/x
  3. Step 3: Cross multiply
    111,506,711.20x = 167,260,066.80 × 87,320,240.80
  4. Step 4: Simplify right side
    111,506,711.20x = 14,605,189,309,200,086
  5. Step 5: Solve for x
    x = 14,605,189,309,200,086/111,506,711.20
  6. Step 6: Final answer
    x = 130,980,361.20

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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.