Home / 141,971,648.64-195,921,006.12-76,781,552.64

Finding the Fourth Proportional to 141,971,648.64, 195,921,006.12 and 76,781,552.64

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Solution

The fourth proportional to 141,971,648.64, 195,921,006.12 and 76,781,552.64 is: 105,958,613.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,971,648.64 : 195,921,006.12 = 76,781,552.64 : x
  2. Step 2: Convert to fraction form
    141,971,648.64/195,921,006.12 = 76,781,552.64/x
  3. Step 3: Cross multiply
    141,971,648.64x = 195,921,006.12 × 76,781,552.64
  4. Step 4: Simplify right side
    141,971,648.64x = 15,043,119,044,684,542
  5. Step 5: Solve for x
    x = 15,043,119,044,684,542/141,971,648.64
  6. Step 6: Final answer
    x = 105,958,613.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.