Home / 20,386,047.64-28,132,749.75-11,218,690.39

Finding the Fourth Proportional to 20,386,047.64, 28,132,749.75 and 11,218,690.39

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Solution

The fourth proportional to 20,386,047.64, 28,132,749.75 and 11,218,690.39 is: 15,481,794.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,047.64 : 28,132,749.75 = 11,218,690.39 : x
  2. Step 2: Convert to fraction form
    20,386,047.64/28,132,749.75 = 11,218,690.39/x
  3. Step 3: Cross multiply
    20,386,047.64x = 28,132,749.75 × 11,218,690.39
  4. Step 4: Simplify right side
    20,386,047.64x = 315,612,609,264,599.94
  5. Step 5: Solve for x
    x = 315,612,609,264,599.94/20,386,047.64
  6. Step 6: Final answer
    x = 15,481,794.94

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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.