Home / 6,238,320.87-8,620,720.20-4,501,689.78

Finding the Fourth Proportional to 6,238,320.87, 8,620,720.20 and 4,501,689.78

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Solution

The fourth proportional to 6,238,320.87, 8,620,720.20 and 4,501,689.78 is: 6,220,873.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,238,320.87 : 8,620,720.20 = 4,501,689.78 : x
  2. Step 2: Convert to fraction form
    6,238,320.87/8,620,720.20 = 4,501,689.78/x
  3. Step 3: Cross multiply
    6,238,320.87x = 8,620,720.20 × 4,501,689.78
  4. Step 4: Simplify right side
    6,238,320.87x = 38,807,808,020,579.55
  5. Step 5: Solve for x
    x = 38,807,808,020,579.55/6,238,320.87
  6. Step 6: Final answer
    x = 6,220,873.99

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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.