Home / 21,161,276.93-29,202,864.78-15,853,567.35

Finding the Fourth Proportional to 21,161,276.93, 29,202,864.78 and 15,853,567.35

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Solution

The fourth proportional to 21,161,276.93, 29,202,864.78 and 15,853,567.35 is: 21,878,149.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,161,276.93 : 29,202,864.78 = 15,853,567.35 : x
  2. Step 2: Convert to fraction form
    21,161,276.93/29,202,864.78 = 15,853,567.35/x
  3. Step 3: Cross multiply
    21,161,276.93x = 29,202,864.78 × 15,853,567.35
  4. Step 4: Simplify right side
    21,161,276.93x = 462,969,583,523,405.06
  5. Step 5: Solve for x
    x = 462,969,583,523,405.06/21,161,276.93
  6. Step 6: Final answer
    x = 21,878,149.66

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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.