Home / 13,940,557.60-20,911,450.80-7,875,200.80

Finding the Fourth Proportional to 13,940,557.60, 20,911,450.80 and 7,875,200.80

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Solution

The fourth proportional to 13,940,557.60, 20,911,450.80 and 7,875,200.80 is: 11,813,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940,557.60 : 20,911,450.80 = 7,875,200.80 : x
  2. Step 2: Convert to fraction form
    13,940,557.60/20,911,450.80 = 7,875,200.80/x
  3. Step 3: Cross multiply
    13,940,557.60x = 20,911,450.80 × 7,875,200.80
  4. Step 4: Simplify right side
    13,940,557.60x = 164,681,874,069,320.66
  5. Step 5: Solve for x
    x = 164,681,874,069,320.66/13,940,557.60
  6. Step 6: Final answer
    x = 11,813,148.28

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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.