Home / 12,991,061.60-19,486,592.40-4,016,520.80

Finding the Fourth Proportional to 12,991,061.60, 19,486,592.40 and 4,016,520.80

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Solution

The fourth proportional to 12,991,061.60, 19,486,592.40 and 4,016,520.80 is: 6,024,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,991,061.60 : 19,486,592.40 = 4,016,520.80 : x
  2. Step 2: Convert to fraction form
    12,991,061.60/19,486,592.40 = 4,016,520.80/x
  3. Step 3: Cross multiply
    12,991,061.60x = 19,486,592.40 × 4,016,520.80
  4. Step 4: Simplify right side
    12,991,061.60x = 78,268,303,695,721.91
  5. Step 5: Solve for x
    x = 78,268,303,695,721.91/12,991,061.60
  6. Step 6: Final answer
    x = 6,024,781.20

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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.