Home / 21,201,711.76-31,805,913.48-9,071,253.82

Finding the Fourth Proportional to 21,201,711.76, 31,805,913.48 and 9,071,253.82

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Solution

The fourth proportional to 21,201,711.76, 31,805,913.48 and 9,071,253.82 is: 13,608,312.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201,711.76 : 31,805,913.48 = 9,071,253.82 : x
  2. Step 2: Convert to fraction form
    21,201,711.76/31,805,913.48 = 9,071,253.82/x
  3. Step 3: Cross multiply
    21,201,711.76x = 31,805,913.48 × 9,071,253.82
  4. Step 4: Simplify right side
    21,201,711.76x = 288,519,514,154,039.50
  5. Step 5: Solve for x
    x = 288,519,514,154,039.50/21,201,711.76
  6. Step 6: Final answer
    x = 13,608,312.26

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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.