Home / 19,112,928.32-28,657,659.39-7,427,655.75

Finding the Fourth Proportional to 19,112,928.32, 28,657,659.39 and 7,427,655.75

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Solution

The fourth proportional to 19,112,928.32, 28,657,659.39 and 7,427,655.75 is: 11,136,923.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112,928.32 : 28,657,659.39 = 7,427,655.75 : x
  2. Step 2: Convert to fraction form
    19,112,928.32/28,657,659.39 = 7,427,655.75/x
  3. Step 3: Cross multiply
    19,112,928.32x = 28,657,659.39 × 7,427,655.75
  4. Step 4: Simplify right side
    19,112,928.32x = 212,859,228,549,675
  5. Step 5: Solve for x
    x = 212,859,228,549,675/19,112,928.32
  6. Step 6: Final answer
    x = 11,136,923.92

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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.