Home / 141,640,989.60-212,120,881.52-80,872,528.80

Finding the Fourth Proportional to 141,640,989.60, 212,120,881.52 and 80,872,528.80

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Solution

The fourth proportional to 141,640,989.60, 212,120,881.52 and 80,872,528.80 is: 121,114,319.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,640,989.60 : 212,120,881.52 = 80,872,528.80 : x
  2. Step 2: Convert to fraction form
    141,640,989.60/212,120,881.52 = 80,872,528.80/x
  3. Step 3: Cross multiply
    141,640,989.60x = 212,120,881.52 × 80,872,528.80
  4. Step 4: Simplify right side
    141,640,989.60x = 17,154,752,099,807,588
  5. Step 5: Solve for x
    x = 17,154,752,099,807,588/141,640,989.60
  6. Step 6: Final answer
    x = 121,114,319.72

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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.