Home / 330,619,159.72-495,929,759.40-81,624,445.72

Finding the Fourth Proportional to 330,619,159.72, 495,929,759.40 and 81,624,445.72

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Solution

The fourth proportional to 330,619,159.72, 495,929,759.40 and 81,624,445.72 is: 122,436,920.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,619,159.72 : 495,929,759.40 = 81,624,445.72 : x
  2. Step 2: Convert to fraction form
    330,619,159.72/495,929,759.40 = 81,624,445.72/x
  3. Step 3: Cross multiply
    330,619,159.72x = 495,929,759.40 × 81,624,445.72
  4. Step 4: Simplify right side
    330,619,159.72x = 40,479,991,727,077,960
  5. Step 5: Solve for x
    x = 40,479,991,727,077,960/330,619,159.72
  6. Step 6: Final answer
    x = 122,436,920.36

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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.