Home / 12,147,513.12-16,762,769.28-6,990,042.24

Finding the Fourth Proportional to 12,147,513.12, 16,762,769.28 and 6,990,042.24

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Solution

The fourth proportional to 12,147,513.12, 16,762,769.28 and 6,990,042.24 is: 9,645,798.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147,513.12 : 16,762,769.28 = 6,990,042.24 : x
  2. Step 2: Convert to fraction form
    12,147,513.12/16,762,769.28 = 6,990,042.24/x
  3. Step 3: Cross multiply
    12,147,513.12x = 16,762,769.28 × 6,990,042.24
  4. Step 4: Simplify right side
    12,147,513.12x = 117,172,465,326,574.39
  5. Step 5: Solve for x
    x = 117,172,465,326,574.39/12,147,513.12
  6. Step 6: Final answer
    x = 9,645,798.62

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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.