Home / 7,115,905.92-9,819,937.16-3,852,720.20

Finding the Fourth Proportional to 7,115,905.92, 9,819,937.16 and 3,852,720.20

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Solution

The fourth proportional to 7,115,905.92, 9,819,937.16 and 3,852,720.20 is: 5,316,746.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115,905.92 : 9,819,937.16 = 3,852,720.20 : x
  2. Step 2: Convert to fraction form
    7,115,905.92/9,819,937.16 = 3,852,720.20/x
  3. Step 3: Cross multiply
    7,115,905.92x = 9,819,937.16 × 3,852,720.20
  4. Step 4: Simplify right side
    7,115,905.92x = 37,833,470,259,062.63
  5. Step 5: Solve for x
    x = 37,833,470,259,062.63/7,115,905.92
  6. Step 6: Final answer
    x = 5,316,746.83

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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.