Home / 168,158,489.60-252,349,708.80-77,235,276.80

Finding the Fourth Proportional to 168,158,489.60, 252,349,708.80 and 77,235,276.80

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Solution

The fourth proportional to 168,158,489.60, 252,349,708.80 and 77,235,276.80 is: 115,904,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,158,489.60 : 252,349,708.80 = 77,235,276.80 : x
  2. Step 2: Convert to fraction form
    168,158,489.60/252,349,708.80 = 77,235,276.80/x
  3. Step 3: Cross multiply
    168,158,489.60x = 252,349,708.80 × 77,235,276.80
  4. Step 4: Simplify right side
    168,158,489.60x = 19,490,299,609,567,396
  5. Step 5: Solve for x
    x = 19,490,299,609,567,396/168,158,489.60
  6. Step 6: Final answer
    x = 115,904,345.10

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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.