Home / 9,521,967.23-13,144,335.88-6,428,679.21

Finding the Fourth Proportional to 9,521,967.23, 13,144,335.88 and 6,428,679.21

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Solution

The fourth proportional to 9,521,967.23, 13,144,335.88 and 6,428,679.21 is: 8,874,292.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521,967.23 : 13,144,335.88 = 6,428,679.21 : x
  2. Step 2: Convert to fraction form
    9,521,967.23/13,144,335.88 = 6,428,679.21/x
  3. Step 3: Cross multiply
    9,521,967.23x = 13,144,335.88 × 6,428,679.21
  4. Step 4: Simplify right side
    9,521,967.23x = 84,500,718,778,911.25
  5. Step 5: Solve for x
    x = 84,500,718,778,911.25/9,521,967.23
  6. Step 6: Final answer
    x = 8,874,292.13

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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.