Home / 12,880,209.40-19,320,314.10-8,345,246.20

Finding the Fourth Proportional to 12,880,209.40, 19,320,314.10 and 8,345,246.20

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Solution

The fourth proportional to 12,880,209.40, 19,320,314.10 and 8,345,246.20 is: 12,517,869.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880,209.40 : 19,320,314.10 = 8,345,246.20 : x
  2. Step 2: Convert to fraction form
    12,880,209.40/19,320,314.10 = 8,345,246.20/x
  3. Step 3: Cross multiply
    12,880,209.40x = 19,320,314.10 × 8,345,246.20
  4. Step 4: Simplify right side
    12,880,209.40x = 161,232,777,825,831.44
  5. Step 5: Solve for x
    x = 161,232,777,825,831.44/12,880,209.40
  6. Step 6: Final answer
    x = 12,517,869.30

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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.