Home / 2,117,756.40-3,177,412.20-855,711.60

Finding the Fourth Proportional to 2,117,756.40, 3,177,412.20 and 855,711.60

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Solution

The fourth proportional to 2,117,756.40, 3,177,412.20 and 855,711.60 is: 1,283,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117,756.40 : 3,177,412.20 = 855,711.60 : x
  2. Step 2: Convert to fraction form
    2,117,756.40/3,177,412.20 = 855,711.60/x
  3. Step 3: Cross multiply
    2,117,756.40x = 3,177,412.20 × 855,711.60
  4. Step 4: Simplify right side
    2,117,756.40x = 2,718,948,477,521.52
  5. Step 5: Solve for x
    x = 2,718,948,477,521.52/2,117,756.40
  6. Step 6: Final answer
    x = 1,283,881.60

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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.