Home / 219,847,531.20-329,771,296.80-127,636,612.80

Finding the Fourth Proportional to 219,847,531.20, 329,771,296.80 and 127,636,612.80

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Solution

The fourth proportional to 219,847,531.20, 329,771,296.80 and 127,636,612.80 is: 191,454,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,847,531.20 : 329,771,296.80 = 127,636,612.80 : x
  2. Step 2: Convert to fraction form
    219,847,531.20/329,771,296.80 = 127,636,612.80/x
  3. Step 3: Cross multiply
    219,847,531.20x = 329,771,296.80 × 127,636,612.80
  4. Step 4: Simplify right side
    219,847,531.20x = 42,090,891,322,215,480
  5. Step 5: Solve for x
    x = 42,090,891,322,215,480/219,847,531.20
  6. Step 6: Final answer
    x = 191,454,919.20

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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.