Home / 129,209,233.61-193,714,510.73-66,893,745.71

Finding the Fourth Proportional to 129,209,233.61, 193,714,510.73 and 66,893,745.71

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Solution

The fourth proportional to 129,209,233.61, 193,714,510.73 and 66,893,745.71 is: 100,289,188.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,209,233.61 : 193,714,510.73 = 66,893,745.71 : x
  2. Step 2: Convert to fraction form
    129,209,233.61/193,714,510.73 = 66,893,745.71/x
  3. Step 3: Cross multiply
    129,209,233.61x = 193,714,510.73 × 66,893,745.71
  4. Step 4: Simplify right side
    129,209,233.61x = 12,958,289,221,259,504
  5. Step 5: Solve for x
    x = 12,958,289,221,259,504/129,209,233.61
  6. Step 6: Final answer
    x = 100,289,188.78

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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.