Home / 28,138,595.87-38,832,475.91-15,579,650.45

Finding the Fourth Proportional to 28,138,595.87, 38,832,475.91 and 15,579,650.45

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Solution

The fourth proportional to 28,138,595.87, 38,832,475.91 and 15,579,650.45 is: 21,500,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,138,595.87 : 38,832,475.91 = 15,579,650.45 : x
  2. Step 2: Convert to fraction form
    28,138,595.87/38,832,475.91 = 15,579,650.45/x
  3. Step 3: Cross multiply
    28,138,595.87x = 38,832,475.91 × 15,579,650.45
  4. Step 4: Simplify right side
    28,138,595.87x = 604,996,400,785,845.62
  5. Step 5: Solve for x
    x = 604,996,400,785,845.62/28,138,595.87
  6. Step 6: Final answer
    x = 21,500,589.57

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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.