Home / 15,376,076.75-21,219,428.79-8,501,001.68

Finding the Fourth Proportional to 15,376,076.75, 21,219,428.79 and 8,501,001.68

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Solution

The fourth proportional to 15,376,076.75, 21,219,428.79 and 8,501,001.68 is: 11,731,627.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376,076.75 : 21,219,428.79 = 8,501,001.68 : x
  2. Step 2: Convert to fraction form
    15,376,076.75/21,219,428.79 = 8,501,001.68/x
  3. Step 3: Cross multiply
    15,376,076.75x = 21,219,428.79 × 8,501,001.68
  4. Step 4: Simplify right side
    15,376,076.75x = 180,386,399,845,478.91
  5. Step 5: Solve for x
    x = 180,386,399,845,478.91/15,376,076.75
  6. Step 6: Final answer
    x = 11,731,627.17

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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.