Home / 100,148,281.10-138,135,625.20-70,441,933.28

Finding the Fourth Proportional to 100,148,281.10, 138,135,625.20 and 70,441,933.28

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Solution

The fourth proportional to 100,148,281.10, 138,135,625.20 and 70,441,933.28 is: 97,161,333.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,148,281.10 : 138,135,625.20 = 70,441,933.28 : x
  2. Step 2: Convert to fraction form
    100,148,281.10/138,135,625.20 = 70,441,933.28/x
  3. Step 3: Cross multiply
    100,148,281.10x = 138,135,625.20 × 70,441,933.28
  4. Step 4: Simplify right side
    100,148,281.10x = 9,730,540,493,929,486
  5. Step 5: Solve for x
    x = 9,730,540,493,929,486/100,148,281.10
  6. Step 6: Final answer
    x = 97,161,333.05

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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.