Home / 12,749,246.40-19,128,535.20-5,176,977.60

Finding the Fourth Proportional to 12,749,246.40, 19,128,535.20 and 5,176,977.60

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Solution

The fourth proportional to 12,749,246.40, 19,128,535.20 and 5,176,977.60 is: 7,767,360.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749,246.40 : 19,128,535.20 = 5,176,977.60 : x
  2. Step 2: Convert to fraction form
    12,749,246.40/19,128,535.20 = 5,176,977.60/x
  3. Step 3: Cross multiply
    12,749,246.40x = 19,128,535.20 × 5,176,977.60
  4. Step 4: Simplify right side
    12,749,246.40x = 99,027,998,251,211.52
  5. Step 5: Solve for x
    x = 99,027,998,251,211.52/12,749,246.40
  6. Step 6: Final answer
    x = 7,767,360.92

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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.