Home / 100,292,810.11-138,423,926.78-65,054,286.01

Finding the Fourth Proportional to 100,292,810.11, 138,423,926.78 and 65,054,286.01

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Solution

The fourth proportional to 100,292,810.11, 138,423,926.78 and 65,054,286.01 is: 89,787,789.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,292,810.11 : 138,423,926.78 = 65,054,286.01 : x
  2. Step 2: Convert to fraction form
    100,292,810.11/138,423,926.78 = 65,054,286.01/x
  3. Step 3: Cross multiply
    100,292,810.11x = 138,423,926.78 × 65,054,286.01
  4. Step 4: Simplify right side
    100,292,810.11x = 9,005,069,723,373,418
  5. Step 5: Solve for x
    x = 9,005,069,723,373,418/100,292,810.11
  6. Step 6: Final answer
    x = 89,787,789.51

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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.