Home / 12,015,948.64-18,025,030.98-3,928,965.76

Finding the Fourth Proportional to 12,015,948.64, 18,025,030.98 and 3,928,965.76

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Solution

The fourth proportional to 12,015,948.64, 18,025,030.98 and 3,928,965.76 is: 5,893,810.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015,948.64 : 18,025,030.98 = 3,928,965.76 : x
  2. Step 2: Convert to fraction form
    12,015,948.64/18,025,030.98 = 3,928,965.76/x
  3. Step 3: Cross multiply
    12,015,948.64x = 18,025,030.98 × 3,928,965.76
  4. Step 4: Simplify right side
    12,015,948.64x = 70,819,729,543,359.25
  5. Step 5: Solve for x
    x = 70,819,729,543,359.25/12,015,948.64
  6. Step 6: Final answer
    x = 5,893,810.94

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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.