Home / 10,649,435.20-15,974,152.80-8,759,867.20

Finding the Fourth Proportional to 10,649,435.20, 15,974,152.80 and 8,759,867.20

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Solution

The fourth proportional to 10,649,435.20, 15,974,152.80 and 8,759,867.20 is: 13,139,800.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,649,435.20 : 15,974,152.80 = 8,759,867.20 : x
  2. Step 2: Convert to fraction form
    10,649,435.20/15,974,152.80 = 8,759,867.20/x
  3. Step 3: Cross multiply
    10,649,435.20x = 15,974,152.80 × 8,759,867.20
  4. Step 4: Simplify right side
    10,649,435.20x = 139,931,457,160,508.16
  5. Step 5: Solve for x
    x = 139,931,457,160,508.16/10,649,435.20
  6. Step 6: Final answer
    x = 13,139,800.80

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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.