Home / 12,718,863.20-19,071,728.40-3,742,248.80

Finding the Fourth Proportional to 12,718,863.20, 19,071,728.40 and 3,742,248.80

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Solution

The fourth proportional to 12,718,863.20, 19,071,728.40 and 3,742,248.80 is: 5,611,441.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718,863.20 : 19,071,728.40 = 3,742,248.80 : x
  2. Step 2: Convert to fraction form
    12,718,863.20/19,071,728.40 = 3,742,248.80/x
  3. Step 3: Cross multiply
    12,718,863.20x = 19,071,728.40 × 3,742,248.80
  4. Step 4: Simplify right side
    12,718,863.20x = 71,371,152,718,825.91
  5. Step 5: Solve for x
    x = 71,371,152,718,825.91/12,718,863.20
  6. Step 6: Final answer
    x = 5,611,441.18

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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.