Home / 21,077,062.85-29,070,298.82-18,141,875.57

Finding the Fourth Proportional to 21,077,062.85, 29,070,298.82 and 18,141,875.57

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Solution

The fourth proportional to 21,077,062.85, 29,070,298.82 and 18,141,875.57 is: 25,021,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,077,062.85 : 29,070,298.82 = 18,141,875.57 : x
  2. Step 2: Convert to fraction form
    21,077,062.85/29,070,298.82 = 18,141,875.57/x
  3. Step 3: Cross multiply
    21,077,062.85x = 29,070,298.82 × 18,141,875.57
  4. Step 4: Simplify right side
    21,077,062.85x = 527,389,743,875,161.06
  5. Step 5: Solve for x
    x = 527,389,743,875,161.06/21,077,062.85
  6. Step 6: Final answer
    x = 25,021,975.20

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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.