Home / 9,317,158.63-12,857,342.75-5,187,083.65

Finding the Fourth Proportional to 9,317,158.63, 12,857,342.75 and 5,187,083.65

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Solution

The fourth proportional to 9,317,158.63, 12,857,342.75 and 5,187,083.65 is: 7,157,988.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,317,158.63 : 12,857,342.75 = 5,187,083.65 : x
  2. Step 2: Convert to fraction form
    9,317,158.63/12,857,342.75 = 5,187,083.65/x
  3. Step 3: Cross multiply
    9,317,158.63x = 12,857,342.75 × 5,187,083.65
  4. Step 4: Simplify right side
    9,317,158.63x = 66,692,112,360,971.04
  5. Step 5: Solve for x
    x = 66,692,112,360,971.04/9,317,158.63
  6. Step 6: Final answer
    x = 7,157,988.29

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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.