Home / 21,456,040.61-29,609,129.68-11,666,488.55

Finding the Fourth Proportional to 21,456,040.61, 29,609,129.68 and 11,666,488.55

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Solution

The fourth proportional to 21,456,040.61, 29,609,129.68 and 11,666,488.55 is: 16,099,641.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,040.61 : 29,609,129.68 = 11,666,488.55 : x
  2. Step 2: Convert to fraction form
    21,456,040.61/29,609,129.68 = 11,666,488.55/x
  3. Step 3: Cross multiply
    21,456,040.61x = 29,609,129.68 × 11,666,488.55
  4. Step 4: Simplify right side
    21,456,040.61x = 345,434,572,209,973.25
  5. Step 5: Solve for x
    x = 345,434,572,209,973.25/21,456,040.61
  6. Step 6: Final answer
    x = 16,099,641.98

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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.