Home / 12,719,015.60-19,050,529.80-7,661,505.20

Finding the Fourth Proportional to 12,719,015.60, 19,050,529.80 and 7,661,505.20

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Solution

The fourth proportional to 12,719,015.60, 19,050,529.80 and 7,661,505.20 is: 11,475,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719,015.60 : 19,050,529.80 = 7,661,505.20 : x
  2. Step 2: Convert to fraction form
    12,719,015.60/19,050,529.80 = 7,661,505.20/x
  3. Step 3: Cross multiply
    12,719,015.60x = 19,050,529.80 × 7,661,505.20
  4. Step 4: Simplify right side
    12,719,015.60x = 145,955,733,125,454.97
  5. Step 5: Solve for x
    x = 145,955,733,125,454.97/12,719,015.60
  6. Step 6: Final answer
    x = 11,475,395.40

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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.