Home / 129,888,001.60-194,832,002.40-38,999,780.80

Finding the Fourth Proportional to 129,888,001.60, 194,832,002.40 and 38,999,780.80

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Solution

The fourth proportional to 129,888,001.60, 194,832,002.40 and 38,999,780.80 is: 58,499,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,888,001.60 : 194,832,002.40 = 38,999,780.80 : x
  2. Step 2: Convert to fraction form
    129,888,001.60/194,832,002.40 = 38,999,780.80/x
  3. Step 3: Cross multiply
    129,888,001.60x = 194,832,002.40 × 38,999,780.80
  4. Step 4: Simplify right side
    129,888,001.60x = 7,598,405,386,425,074
  5. Step 5: Solve for x
    x = 7,598,405,386,425,074/129,888,001.60
  6. Step 6: Final answer
    x = 58,499,671.20

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1.5x scale

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.