Home / 7,105,963.40-10,657,875.98-1,987,729.86

Finding the Fourth Proportional to 7,105,963.40, 10,657,875.98 and 1,987,729.86

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Solution

The fourth proportional to 7,105,963.40, 10,657,875.98 and 1,987,729.86 is: 2,981,295.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105,963.40 : 10,657,875.98 = 1,987,729.86 : x
  2. Step 2: Convert to fraction form
    7,105,963.40/10,657,875.98 = 1,987,729.86/x
  3. Step 3: Cross multiply
    7,105,963.40x = 10,657,875.98 × 1,987,729.86
  4. Step 4: Simplify right side
    7,105,963.40x = 21,184,978,319,684.11
  5. Step 5: Solve for x
    x = 21,184,978,319,684.11/7,105,963.40
  6. Step 6: Final answer
    x = 2,981,295.73

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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.