Home / 18,679,615.20-28,019,422.80-6,562,760.40

Finding the Fourth Proportional to 18,679,615.20, 28,019,422.80 and 6,562,760.40

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Solution

The fourth proportional to 18,679,615.20, 28,019,422.80 and 6,562,760.40 is: 9,844,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679,615.20 : 28,019,422.80 = 6,562,760.40 : x
  2. Step 2: Convert to fraction form
    18,679,615.20/28,019,422.80 = 6,562,760.40/x
  3. Step 3: Cross multiply
    18,679,615.20x = 28,019,422.80 × 6,562,760.40
  4. Step 4: Simplify right side
    18,679,615.20x = 183,884,758,382,697.12
  5. Step 5: Solve for x
    x = 183,884,758,382,697.12/18,679,615.20
  6. Step 6: Final answer
    x = 9,844,140.60

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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.