Home / 12,456,470.40-18,684,705.60-10,436,994.60

Finding the Fourth Proportional to 12,456,470.40, 18,684,705.60 and 10,436,994.60

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Solution

The fourth proportional to 12,456,470.40, 18,684,705.60 and 10,436,994.60 is: 15,655,491.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,470.40 : 18,684,705.60 = 10,436,994.60 : x
  2. Step 2: Convert to fraction form
    12,456,470.40/18,684,705.60 = 10,436,994.60/x
  3. Step 3: Cross multiply
    12,456,470.40x = 18,684,705.60 × 10,436,994.60
  4. Step 4: Simplify right side
    12,456,470.40x = 195,012,171,449,789.78
  5. Step 5: Solve for x
    x = 195,012,171,449,789.78/12,456,470.40
  6. Step 6: Final answer
    x = 15,655,491.90

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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.