Home / 12,718,862.20-19,071,726.90-3,742,247.80

Finding the Fourth Proportional to 12,718,862.20, 19,071,726.90 and 3,742,247.80

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Solution

The fourth proportional to 12,718,862.20, 19,071,726.90 and 3,742,247.80 is: 5,611,439.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718,862.20 : 19,071,726.90 = 3,742,247.80 : x
  2. Step 2: Convert to fraction form
    12,718,862.20/19,071,726.90 = 3,742,247.80/x
  3. Step 3: Cross multiply
    12,718,862.20x = 19,071,726.90 × 3,742,247.80
  4. Step 4: Simplify right side
    12,718,862.20x = 71,371,128,033,725.81
  5. Step 5: Solve for x
    x = 71,371,128,033,725.81/12,718,862.20
  6. Step 6: Final answer
    x = 5,611,439.68

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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.