Home / 21,097,320.76-31,650,753.66-6,721,207.48

Finding the Fourth Proportional to 21,097,320.76, 31,650,753.66 and 6,721,207.48

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Solution

The fourth proportional to 21,097,320.76, 31,650,753.66 and 6,721,207.48 is: 10,083,331.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,097,320.76 : 31,650,753.66 = 6,721,207.48 : x
  2. Step 2: Convert to fraction form
    21,097,320.76/31,650,753.66 = 6,721,207.48/x
  3. Step 3: Cross multiply
    21,097,320.76x = 31,650,753.66 × 6,721,207.48
  4. Step 4: Simplify right side
    21,097,320.76x = 212,731,282,168,102.50
  5. Step 5: Solve for x
    x = 212,731,282,168,102.50/21,097,320.76
  6. Step 6: Final answer
    x = 10,083,331.65

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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.