Home / 10,990,722.40-16,478,403.60-6,500,687.20

Finding the Fourth Proportional to 10,990,722.40, 16,478,403.60 and 6,500,687.20

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Solution

The fourth proportional to 10,990,722.40, 16,478,403.60 and 6,500,687.20 is: 9,746,488.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990,722.40 : 16,478,403.60 = 6,500,687.20 : x
  2. Step 2: Convert to fraction form
    10,990,722.40/16,478,403.60 = 6,500,687.20/x
  3. Step 3: Cross multiply
    10,990,722.40x = 16,478,403.60 × 6,500,687.20
  4. Step 4: Simplify right side
    10,990,722.40x = 107,120,947,358,953.92
  5. Step 5: Solve for x
    x = 107,120,947,358,953.92/10,990,722.40
  6. Step 6: Final answer
    x = 9,746,488.31

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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.