Home / 101,479,743.86-140,042,138.04-55,069,998.21

Finding the Fourth Proportional to 101,479,743.86, 140,042,138.04 and 55,069,998.21

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Solution

The fourth proportional to 101,479,743.86, 140,042,138.04 and 55,069,998.21 is: 75,996,647.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,479,743.86 : 140,042,138.04 = 55,069,998.21 : x
  2. Step 2: Convert to fraction form
    101,479,743.86/140,042,138.04 = 55,069,998.21/x
  3. Step 3: Cross multiply
    101,479,743.86x = 140,042,138.04 × 55,069,998.21
  4. Step 4: Simplify right side
    101,479,743.86x = 7,712,120,291,187,373
  5. Step 5: Solve for x
    x = 7,712,120,291,187,373/101,479,743.86
  6. Step 6: Final answer
    x = 75,996,647.19

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Double scale
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1.5x scale

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.