Home / 12,356,906.40-18,535,359.60-10,656,295.20

Finding the Fourth Proportional to 12,356,906.40, 18,535,359.60 and 10,656,295.20

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Solution

The fourth proportional to 12,356,906.40, 18,535,359.60 and 10,656,295.20 is: 15,984,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356,906.40 : 18,535,359.60 = 10,656,295.20 : x
  2. Step 2: Convert to fraction form
    12,356,906.40/18,535,359.60 = 10,656,295.20/x
  3. Step 3: Cross multiply
    12,356,906.40x = 18,535,359.60 × 10,656,295.20
  4. Step 4: Simplify right side
    12,356,906.40x = 197,518,263,535,753.94
  5. Step 5: Solve for x
    x = 197,518,263,535,753.94/12,356,906.40
  6. Step 6: Final answer
    x = 15,984,442.80

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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.