Home / 100,540,175.94-138,744,492.90-55,884,977.18

Finding the Fourth Proportional to 100,540,175.94, 138,744,492.90 and 55,884,977.18

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Solution

The fourth proportional to 100,540,175.94, 138,744,492.90 and 55,884,977.18 is: 77,120,740.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,540,175.94 : 138,744,492.90 = 55,884,977.18 : x
  2. Step 2: Convert to fraction form
    100,540,175.94/138,744,492.90 = 55,884,977.18/x
  3. Step 3: Cross multiply
    100,540,175.94x = 138,744,492.90 × 55,884,977.18
  4. Step 4: Simplify right side
    100,540,175.94x = 7,753,732,819,567,172
  5. Step 5: Solve for x
    x = 7,753,732,819,567,172/100,540,175.94
  6. Step 6: Final answer
    x = 77,120,740.51

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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.