Home / 123,541,520.20-170,416,465.86-77,051,061.16

Finding the Fourth Proportional to 123,541,520.20, 170,416,465.86 and 77,051,061.16

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Solution

The fourth proportional to 123,541,520.20, 170,416,465.86 and 77,051,061.16 is: 106,286,287.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,541,520.20 : 170,416,465.86 = 77,051,061.16 : x
  2. Step 2: Convert to fraction form
    123,541,520.20/170,416,465.86 = 77,051,061.16/x
  3. Step 3: Cross multiply
    123,541,520.20x = 170,416,465.86 × 77,051,061.16
  4. Step 4: Simplify right side
    123,541,520.20x = 13,130,769,533,649,912
  5. Step 5: Solve for x
    x = 13,130,769,533,649,912/123,541,520.20
  6. Step 6: Final answer
    x = 106,286,287.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.