Home / 21,853,420.81-30,156,930.36-12,063,654.82

Finding the Fourth Proportional to 21,853,420.81, 30,156,930.36 and 12,063,654.82

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Solution

The fourth proportional to 21,853,420.81, 30,156,930.36 and 12,063,654.82 is: 16,647,407.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,853,420.81 : 30,156,930.36 = 12,063,654.82 : x
  2. Step 2: Convert to fraction form
    21,853,420.81/30,156,930.36 = 12,063,654.82/x
  3. Step 3: Cross multiply
    21,853,420.81x = 30,156,930.36 × 12,063,654.82
  4. Step 4: Simplify right side
    21,853,420.81x = 363,802,798,293,818.31
  5. Step 5: Solve for x
    x = 363,802,798,293,818.31/21,853,420.81
  6. Step 6: Final answer
    x = 16,647,407.35

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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.