Home / 126,113,411.20-189,170,116.80-100,604,243.20

Finding the Fourth Proportional to 126,113,411.20, 189,170,116.80 and 100,604,243.20

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Solution

The fourth proportional to 126,113,411.20, 189,170,116.80 and 100,604,243.20 is: 150,906,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,113,411.20 : 189,170,116.80 = 100,604,243.20 : x
  2. Step 2: Convert to fraction form
    126,113,411.20/189,170,116.80 = 100,604,243.20/x
  3. Step 3: Cross multiply
    126,113,411.20x = 189,170,116.80 × 100,604,243.20
  4. Step 4: Simplify right side
    126,113,411.20x = 19,031,316,436,719,608
  5. Step 5: Solve for x
    x = 19,031,316,436,719,608/126,113,411.20
  6. Step 6: Final answer
    x = 150,906,364.80

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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.