Home / 2,666,811.71-3,680,209.85-1,443,117.11

Finding the Fourth Proportional to 2,666,811.71, 3,680,209.85 and 1,443,117.11

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Solution

The fourth proportional to 2,666,811.71, 3,680,209.85 and 1,443,117.11 is: 1,991,506.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666,811.71 : 3,680,209.85 = 1,443,117.11 : x
  2. Step 2: Convert to fraction form
    2,666,811.71/3,680,209.85 = 1,443,117.11/x
  3. Step 3: Cross multiply
    2,666,811.71x = 3,680,209.85 × 1,443,117.11
  4. Step 4: Simplify right side
    2,666,811.71x = 5,310,973,788,132.28
  5. Step 5: Solve for x
    x = 5,310,973,788,132.28/2,666,811.71
  6. Step 6: Final answer
    x = 1,991,506.85

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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.