Home / 141,793,213.20-212,689,819.80-121,385,878.80

Finding the Fourth Proportional to 141,793,213.20, 212,689,819.80 and 121,385,878.80

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Solution

The fourth proportional to 141,793,213.20, 212,689,819.80 and 121,385,878.80 is: 182,078,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,793,213.20 : 212,689,819.80 = 121,385,878.80 : x
  2. Step 2: Convert to fraction form
    141,793,213.20/212,689,819.80 = 121,385,878.80/x
  3. Step 3: Cross multiply
    141,793,213.20x = 212,689,819.80 × 121,385,878.80
  4. Step 4: Simplify right side
    141,793,213.20x = 25,817,540,688,236,640
  5. Step 5: Solve for x
    x = 25,817,540,688,236,640/141,793,213.20
  6. Step 6: Final answer
    x = 182,078,818.20

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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.