Home / 123,723,320.79-170,719,202.91-71,502,271.47

Finding the Fourth Proportional to 123,723,320.79, 170,719,202.91 and 71,502,271.47

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Solution

The fourth proportional to 123,723,320.79, 170,719,202.91 and 71,502,271.47 is: 98,662,165.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,723,320.79 : 170,719,202.91 = 71,502,271.47 : x
  2. Step 2: Convert to fraction form
    123,723,320.79/170,719,202.91 = 71,502,271.47/x
  3. Step 3: Cross multiply
    123,723,320.79x = 170,719,202.91 × 71,502,271.47
  4. Step 4: Simplify right side
    123,723,320.79x = 12,206,810,791,612,834
  5. Step 5: Solve for x
    x = 12,206,810,791,612,834/123,723,320.79
  6. Step 6: Final answer
    x = 98,662,165.82

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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.