Home / 28,011,298.24-38,655,886.92-15,788,155.24

Finding the Fourth Proportional to 28,011,298.24, 38,655,886.92 and 15,788,155.24

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Solution

The fourth proportional to 28,011,298.24, 38,655,886.92 and 15,788,155.24 is: 21,787,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011,298.24 : 38,655,886.92 = 15,788,155.24 : x
  2. Step 2: Convert to fraction form
    28,011,298.24/38,655,886.92 = 15,788,155.24/x
  3. Step 3: Cross multiply
    28,011,298.24x = 38,655,886.92 × 15,788,155.24
  4. Step 4: Simplify right side
    28,011,298.24x = 610,305,143,632,845.50
  5. Step 5: Solve for x
    x = 610,305,143,632,845.50/28,011,298.24
  6. Step 6: Final answer
    x = 21,787,820.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.