Home / 3,929,988.04-5,423,345.16-2,187,629.80

Finding the Fourth Proportional to 3,929,988.04, 5,423,345.16 and 2,187,629.80

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Solution

The fourth proportional to 3,929,988.04, 5,423,345.16 and 2,187,629.80 is: 3,018,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,988.04 : 5,423,345.16 = 2,187,629.80 : x
  2. Step 2: Convert to fraction form
    3,929,988.04/5,423,345.16 = 2,187,629.80/x
  3. Step 3: Cross multiply
    3,929,988.04x = 5,423,345.16 × 2,187,629.80
  4. Step 4: Simplify right side
    3,929,988.04x = 11,864,271,487,701.77
  5. Step 5: Solve for x
    x = 11,864,271,487,701.77/3,929,988.04
  6. Step 6: Final answer
    x = 3,018,907.78

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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.