Home / 5,187,985.32-7,782,261.24-2,155,657.80

Finding the Fourth Proportional to 5,187,985.32, 7,782,261.24 and 2,155,657.80

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Solution

The fourth proportional to 5,187,985.32, 7,782,261.24 and 2,155,657.80 is: 3,233,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187,985.32 : 7,782,261.24 = 2,155,657.80 : x
  2. Step 2: Convert to fraction form
    5,187,985.32/7,782,261.24 = 2,155,657.80/x
  3. Step 3: Cross multiply
    5,187,985.32x = 7,782,261.24 × 2,155,657.80
  4. Step 4: Simplify right side
    5,187,985.32x = 16,775,892,143,643.67
  5. Step 5: Solve for x
    x = 16,775,892,143,643.67/5,187,985.32
  6. Step 6: Final answer
    x = 3,233,604.40

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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.