Home / 7,169,707.40-9,894,071.12-3,906,549.14

Finding the Fourth Proportional to 7,169,707.40, 9,894,071.12 and 3,906,549.14

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Solution

The fourth proportional to 7,169,707.40, 9,894,071.12 and 3,906,549.14 is: 5,390,969.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,169,707.40 : 9,894,071.12 = 3,906,549.14 : x
  2. Step 2: Convert to fraction form
    7,169,707.40/9,894,071.12 = 3,906,549.14/x
  3. Step 3: Cross multiply
    7,169,707.40x = 9,894,071.12 × 3,906,549.14
  4. Step 4: Simplify right side
    7,169,707.40x = 38,651,675,024,934.84
  5. Step 5: Solve for x
    x = 38,651,675,024,934.84/7,169,707.40
  6. Step 6: Final answer
    x = 5,390,969.65

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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.