Home / 21,141,616.86-31,712,445.27-5,185,264.86

Finding the Fourth Proportional to 21,141,616.86, 31,712,445.27 and 5,185,264.86

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Solution

The fourth proportional to 21,141,616.86, 31,712,445.27 and 5,185,264.86 is: 7,777,902.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141,616.86 : 31,712,445.27 = 5,185,264.86 : x
  2. Step 2: Convert to fraction form
    21,141,616.86/31,712,445.27 = 5,185,264.86/x
  3. Step 3: Cross multiply
    21,141,616.86x = 31,712,445.27 × 5,185,264.86
  4. Step 4: Simplify right side
    21,141,616.86x = 164,437,428,083,204.22
  5. Step 5: Solve for x
    x = 164,437,428,083,204.22/21,141,616.86
  6. Step 6: Final answer
    x = 7,777,902.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.