Home / 8,960,869.31-13,431,131.87-7,879,288.46

Finding the Fourth Proportional to 8,960,869.31, 13,431,131.87 and 7,879,288.46

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Solution

The fourth proportional to 8,960,869.31, 13,431,131.87 and 7,879,288.46 is: 11,809,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960,869.31 : 13,431,131.87 = 7,879,288.46 : x
  2. Step 2: Convert to fraction form
    8,960,869.31/13,431,131.87 = 7,879,288.46/x
  3. Step 3: Cross multiply
    8,960,869.31x = 13,431,131.87 × 7,879,288.46
  4. Step 4: Simplify right side
    8,960,869.31x = 105,827,762,241,477.12
  5. Step 5: Solve for x
    x = 105,827,762,241,477.12/8,960,869.31
  6. Step 6: Final answer
    x = 11,809,988.37

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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.