Home / 98,408,890.20-147,613,335.30-47,278,579.80

Finding the Fourth Proportional to 98,408,890.20, 147,613,335.30 and 47,278,579.80

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Solution

The fourth proportional to 98,408,890.20, 147,613,335.30 and 47,278,579.80 is: 70,917,869.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,408,890.20 : 147,613,335.30 = 47,278,579.80 : x
  2. Step 2: Convert to fraction form
    98,408,890.20/147,613,335.30 = 47,278,579.80/x
  3. Step 3: Cross multiply
    98,408,890.20x = 147,613,335.30 × 47,278,579.80
  4. Step 4: Simplify right side
    98,408,890.20x = 6,978,948,852,525,207
  5. Step 5: Solve for x
    x = 6,978,948,852,525,207/98,408,890.20
  6. Step 6: Final answer
    x = 70,917,869.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.