Home / 67,031,419.36-100,407,625.68-42,649,569.76

Finding the Fourth Proportional to 67,031,419.36, 100,407,625.68 and 42,649,569.76

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Solution

The fourth proportional to 67,031,419.36, 100,407,625.68 and 42,649,569.76 is: 63,885,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,031,419.36 : 100,407,625.68 = 42,649,569.76 : x
  2. Step 2: Convert to fraction form
    67,031,419.36/100,407,625.68 = 42,649,569.76/x
  3. Step 3: Cross multiply
    67,031,419.36x = 100,407,625.68 × 42,649,569.76
  4. Step 4: Simplify right side
    67,031,419.36x = 4,282,342,035,875,127.50
  5. Step 5: Solve for x
    x = 4,282,342,035,875,127.50/67,031,419.36
  6. Step 6: Final answer
    x = 63,885,593.90

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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.