Home / 2,820,139.20-4,230,208.80-1,625,745.60

Finding the Fourth Proportional to 2,820,139.20, 4,230,208.80 and 1,625,745.60

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Solution

The fourth proportional to 2,820,139.20, 4,230,208.80 and 1,625,745.60 is: 2,438,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820,139.20 : 4,230,208.80 = 1,625,745.60 : x
  2. Step 2: Convert to fraction form
    2,820,139.20/4,230,208.80 = 1,625,745.60/x
  3. Step 3: Cross multiply
    2,820,139.20x = 4,230,208.80 × 1,625,745.60
  4. Step 4: Simplify right side
    2,820,139.20x = 6,877,243,343,681.28
  5. Step 5: Solve for x
    x = 6,877,243,343,681.28/2,820,139.20
  6. Step 6: Final answer
    x = 2,438,618.40

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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.