Home / 100,585,128.62-138,808,726.98-60,892,133.78

Finding the Fourth Proportional to 100,585,128.62, 138,808,726.98 and 60,892,133.78

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Solution

The fourth proportional to 100,585,128.62, 138,808,726.98 and 60,892,133.78 is: 84,031,901.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,585,128.62 : 138,808,726.98 = 60,892,133.78 : x
  2. Step 2: Convert to fraction form
    100,585,128.62/138,808,726.98 = 60,892,133.78/x
  3. Step 3: Cross multiply
    100,585,128.62x = 138,808,726.98 × 60,892,133.78
  4. Step 4: Simplify right side
    100,585,128.62x = 8,452,359,573,097,655
  5. Step 5: Solve for x
    x = 8,452,359,573,097,655/100,585,128.62
  6. Step 6: Final answer
    x = 84,031,901.03

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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.