Home / 140,730,709.60-194,208,248.92-78,851,490.76

Finding the Fourth Proportional to 140,730,709.60, 194,208,248.92 and 78,851,490.76

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Solution

The fourth proportional to 140,730,709.60, 194,208,248.92 and 78,851,490.76 is: 108,814,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,730,709.60 : 194,208,248.92 = 78,851,490.76 : x
  2. Step 2: Convert to fraction form
    140,730,709.60/194,208,248.92 = 78,851,490.76/x
  3. Step 3: Cross multiply
    140,730,709.60x = 194,208,248.92 × 78,851,490.76
  4. Step 4: Simplify right side
    140,730,709.60x = 15,313,609,945,231,160
  5. Step 5: Solve for x
    x = 15,313,609,945,231,160/140,730,709.60
  6. Step 6: Final answer
    x = 108,814,984.23

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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.