Home / 20,461,218.52-28,236,484-11,293,863.70

Finding the Fourth Proportional to 20,461,218.52, 28,236,484 and 11,293,863.70

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Solution

The fourth proportional to 20,461,218.52, 28,236,484 and 11,293,863.70 is: 15,585,533.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,461,218.52 : 28,236,484 = 11,293,863.70 : x
  2. Step 2: Convert to fraction form
    20,461,218.52/28,236,484 = 11,293,863.70/x
  3. Step 3: Cross multiply
    20,461,218.52x = 28,236,484 × 11,293,863.70
  4. Step 4: Simplify right side
    20,461,218.52x = 318,899,001,663,230.75
  5. Step 5: Solve for x
    x = 318,899,001,663,230.75/20,461,218.52
  6. Step 6: Final answer
    x = 15,585,533.25

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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.