Home / 10,649,449.20-15,974,173.80-8,759,881.20

Finding the Fourth Proportional to 10,649,449.20, 15,974,173.80 and 8,759,881.20

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Solution

The fourth proportional to 10,649,449.20, 15,974,173.80 and 8,759,881.20 is: 13,139,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,649,449.20 : 15,974,173.80 = 8,759,881.20 : x
  2. Step 2: Convert to fraction form
    10,649,449.20/15,974,173.80 = 8,759,881.20/x
  3. Step 3: Cross multiply
    10,649,449.20x = 15,974,173.80 × 8,759,881.20
  4. Step 4: Simplify right side
    10,649,449.20x = 139,931,864,756,152.55
  5. Step 5: Solve for x
    x = 139,931,864,756,152.55/10,649,449.20
  6. Step 6: Final answer
    x = 13,139,821.80

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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.