Home / 12,485,320.80-18,727,981.20-3,966,518.40

Finding the Fourth Proportional to 12,485,320.80, 18,727,981.20 and 3,966,518.40

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Solution

The fourth proportional to 12,485,320.80, 18,727,981.20 and 3,966,518.40 is: 5,949,777.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,320.80 : 18,727,981.20 = 3,966,518.40 : x
  2. Step 2: Convert to fraction form
    12,485,320.80/18,727,981.20 = 3,966,518.40/x
  3. Step 3: Cross multiply
    12,485,320.80x = 18,727,981.20 × 3,966,518.40
  4. Step 4: Simplify right side
    12,485,320.80x = 74,284,882,024,654.08
  5. Step 5: Solve for x
    x = 74,284,882,024,654.08/12,485,320.80
  6. Step 6: Final answer
    x = 5,949,777.60

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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.