Home / 13,292,446.32-18,345,042.81-7,711,922.16

Finding the Fourth Proportional to 13,292,446.32, 18,345,042.81 and 7,711,922.16

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Solution

The fourth proportional to 13,292,446.32, 18,345,042.81 and 7,711,922.16 is: 10,643,303.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292,446.32 : 18,345,042.81 = 7,711,922.16 : x
  2. Step 2: Convert to fraction form
    13,292,446.32/18,345,042.81 = 7,711,922.16/x
  3. Step 3: Cross multiply
    13,292,446.32x = 18,345,042.81 × 7,711,922.16
  4. Step 4: Simplify right side
    13,292,446.32x = 141,475,542,172,587.66
  5. Step 5: Solve for x
    x = 141,475,542,172,587.66/13,292,446.32
  6. Step 6: Final answer
    x = 10,643,303.63

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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.