Home / 2,991,411.60-4,487,117.40-2,660,737.20

Finding the Fourth Proportional to 2,991,411.60, 4,487,117.40 and 2,660,737.20

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Solution

The fourth proportional to 2,991,411.60, 4,487,117.40 and 2,660,737.20 is: 3,991,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991,411.60 : 4,487,117.40 = 2,660,737.20 : x
  2. Step 2: Convert to fraction form
    2,991,411.60/4,487,117.40 = 2,660,737.20/x
  3. Step 3: Cross multiply
    2,991,411.60x = 4,487,117.40 × 2,660,737.20
  4. Step 4: Simplify right side
    2,991,411.60x = 11,939,040,186,947.28
  5. Step 5: Solve for x
    x = 11,939,040,186,947.28/2,991,411.60
  6. Step 6: Final answer
    x = 3,991,105.80

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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.