Home / 2,987,811.20-4,475,811.90-1,637,557.40

Finding the Fourth Proportional to 2,987,811.20, 4,475,811.90 and 1,637,557.40

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Solution

The fourth proportional to 2,987,811.20, 4,475,811.90 and 1,637,557.40 is: 2,453,099.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,811.20 : 4,475,811.90 = 1,637,557.40 : x
  2. Step 2: Convert to fraction form
    2,987,811.20/4,475,811.90 = 1,637,557.40/x
  3. Step 3: Cross multiply
    2,987,811.20x = 4,475,811.90 × 1,637,557.40
  4. Step 4: Simplify right side
    2,987,811.20x = 7,329,398,897,853.06
  5. Step 5: Solve for x
    x = 7,329,398,897,853.06/2,987,811.20
  6. Step 6: Final answer
    x = 2,453,099.75

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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.