Home / 13,824,139.40-20,736,209.10-12,879,355.40

Finding the Fourth Proportional to 13,824,139.40, 20,736,209.10 and 12,879,355.40

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Solution

The fourth proportional to 13,824,139.40, 20,736,209.10 and 12,879,355.40 is: 19,319,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824,139.40 : 20,736,209.10 = 12,879,355.40 : x
  2. Step 2: Convert to fraction form
    13,824,139.40/20,736,209.10 = 12,879,355.40/x
  3. Step 3: Cross multiply
    13,824,139.40x = 20,736,209.10 × 12,879,355.40
  4. Step 4: Simplify right side
    13,824,139.40x = 267,069,006,647,614.16
  5. Step 5: Solve for x
    x = 267,069,006,647,614.16/13,824,139.40
  6. Step 6: Final answer
    x = 19,319,033.10

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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.