Home / 10,278,489.60-15,417,734.40-9,216,806.40

Finding the Fourth Proportional to 10,278,489.60, 15,417,734.40 and 9,216,806.40

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Solution

The fourth proportional to 10,278,489.60, 15,417,734.40 and 9,216,806.40 is: 13,825,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278,489.60 : 15,417,734.40 = 9,216,806.40 : x
  2. Step 2: Convert to fraction form
    10,278,489.60/15,417,734.40 = 9,216,806.40/x
  3. Step 3: Cross multiply
    10,278,489.60x = 15,417,734.40 × 9,216,806.40
  4. Step 4: Simplify right side
    10,278,489.60x = 142,102,273,091,420.16
  5. Step 5: Solve for x
    x = 142,102,273,091,420.16/10,278,489.60
  6. Step 6: Final answer
    x = 13,825,209.60

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1.5x scale

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.