Home / 5,216,875.20-7,829,200.80-2,691,230.40

Finding the Fourth Proportional to 5,216,875.20, 7,829,200.80 and 2,691,230.40

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Solution

The fourth proportional to 5,216,875.20, 7,829,200.80 and 2,691,230.40 is: 4,038,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216,875.20 : 7,829,200.80 = 2,691,230.40 : x
  2. Step 2: Convert to fraction form
    5,216,875.20/7,829,200.80 = 2,691,230.40/x
  3. Step 3: Cross multiply
    5,216,875.20x = 7,829,200.80 × 2,691,230.40
  4. Step 4: Simplify right side
    5,216,875.20x = 21,070,183,200,664.32
  5. Step 5: Solve for x
    x = 21,070,183,200,664.32/5,216,875.20
  6. Step 6: Final answer
    x = 4,038,851.30

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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.