Home / 123,323,538.42-170,179,976.85-70,398,143.21

Finding the Fourth Proportional to 123,323,538.42, 170,179,976.85 and 70,398,143.21

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Solution

The fourth proportional to 123,323,538.42, 170,179,976.85 and 70,398,143.21 is: 97,145,723.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,323,538.42 : 170,179,976.85 = 70,398,143.21 : x
  2. Step 2: Convert to fraction form
    123,323,538.42/170,179,976.85 = 70,398,143.21/x
  3. Step 3: Cross multiply
    123,323,538.42x = 170,179,976.85 × 70,398,143.21
  4. Step 4: Simplify right side
    123,323,538.42x = 11,980,354,381,760,784
  5. Step 5: Solve for x
    x = 11,980,354,381,760,784/123,323,538.42
  6. Step 6: Final answer
    x = 97,145,723.64

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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.