Home / 7,077,743.11-9,767,192.61-3,980,265.51

Finding the Fourth Proportional to 7,077,743.11, 9,767,192.61 and 3,980,265.51

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Solution

The fourth proportional to 7,077,743.11, 9,767,192.61 and 3,980,265.51 is: 5,492,714.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077,743.11 : 9,767,192.61 = 3,980,265.51 : x
  2. Step 2: Convert to fraction form
    7,077,743.11/9,767,192.61 = 3,980,265.51/x
  3. Step 3: Cross multiply
    7,077,743.11x = 9,767,192.61 × 3,980,265.51
  4. Step 4: Simplify right side
    7,077,743.11x = 38,876,019,838,654.72
  5. Step 5: Solve for x
    x = 38,876,019,838,654.72/7,077,743.11
  6. Step 6: Final answer
    x = 5,492,714.17

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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.