Home / 121,532,607.74-167,716,119.30-71,975,800.10

Finding the Fourth Proportional to 121,532,607.74, 167,716,119.30 and 71,975,800.10

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Solution

The fourth proportional to 121,532,607.74, 167,716,119.30 and 71,975,800.10 is: 99,327,267.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,532,607.74 : 167,716,119.30 = 71,975,800.10 : x
  2. Step 2: Convert to fraction form
    121,532,607.74/167,716,119.30 = 71,975,800.10/x
  3. Step 3: Cross multiply
    121,532,607.74x = 167,716,119.30 × 71,975,800.10
  4. Step 4: Simplify right side
    121,532,607.74x = 12,071,501,876,284,552
  5. Step 5: Solve for x
    x = 12,071,501,876,284,552/121,532,607.74
  6. Step 6: Final answer
    x = 99,327,267.81

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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.