Home / 3,911,980.28-5,866,035.06-1,387,257.08

Finding the Fourth Proportional to 3,911,980.28, 5,866,035.06 and 1,387,257.08

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Solution

The fourth proportional to 3,911,980.28, 5,866,035.06 and 1,387,257.08 is: 2,080,199.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911,980.28 : 5,866,035.06 = 1,387,257.08 : x
  2. Step 2: Convert to fraction form
    3,911,980.28/5,866,035.06 = 1,387,257.08/x
  3. Step 3: Cross multiply
    3,911,980.28x = 5,866,035.06 × 1,387,257.08
  4. Step 4: Simplify right side
    3,911,980.28x = 8,137,698,668,513.23
  5. Step 5: Solve for x
    x = 8,137,698,668,513.23/3,911,980.28
  6. Step 6: Final answer
    x = 2,080,199.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.