Home / 10,990,720.40-16,478,400.60-6,500,685.20

Finding the Fourth Proportional to 10,990,720.40, 16,478,400.60 and 6,500,685.20

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Solution

The fourth proportional to 10,990,720.40, 16,478,400.60 and 6,500,685.20 is: 9,746,485.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990,720.40 : 16,478,400.60 = 6,500,685.20 : x
  2. Step 2: Convert to fraction form
    10,990,720.40/16,478,400.60 = 6,500,685.20/x
  3. Step 3: Cross multiply
    10,990,720.40x = 16,478,400.60 × 6,500,685.20
  4. Step 4: Simplify right side
    10,990,720.40x = 107,120,894,900,091.12
  5. Step 5: Solve for x
    x = 107,120,894,900,091.12/10,990,720.40
  6. Step 6: Final answer
    x = 9,746,485.31

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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.