Home / 8,731,351-13,105,963.82-7,210,187.20

Finding the Fourth Proportional to 8,731,351, 13,105,963.82 and 7,210,187.20

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Solution

The fourth proportional to 8,731,351, 13,105,963.82 and 7,210,187.20 is: 10,822,661.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731,351 : 13,105,963.82 = 7,210,187.20 : x
  2. Step 2: Convert to fraction form
    8,731,351/13,105,963.82 = 7,210,187.20/x
  3. Step 3: Cross multiply
    8,731,351x = 13,105,963.82 × 7,210,187.20
  4. Step 4: Simplify right side
    8,731,351x = 94,496,452,578,627.11
  5. Step 5: Solve for x
    x = 94,496,452,578,627.11/8,731,351
  6. Step 6: Final answer
    x = 10,822,661.07

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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.