Home / 100,148,280.60-138,135,624.51-70,441,932.78

Finding the Fourth Proportional to 100,148,280.60, 138,135,624.51 and 70,441,932.78

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Solution

The fourth proportional to 100,148,280.60, 138,135,624.51 and 70,441,932.78 is: 97,161,332.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,148,280.60 : 138,135,624.51 = 70,441,932.78 : x
  2. Step 2: Convert to fraction form
    100,148,280.60/138,135,624.51 = 70,441,932.78/x
  3. Step 3: Cross multiply
    100,148,280.60x = 138,135,624.51 × 70,441,932.78
  4. Step 4: Simplify right side
    100,148,280.60x = 9,730,540,376,256,740
  5. Step 5: Solve for x
    x = 9,730,540,376,256,740/100,148,280.60
  6. Step 6: Final answer
    x = 97,161,332.36

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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.