Home / 128,589,024.21-177,431,818.03-75,710,292.96

Finding the Fourth Proportional to 128,589,024.21, 177,431,818.03 and 75,710,292.96

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Solution

The fourth proportional to 128,589,024.21, 177,431,818.03 and 75,710,292.96 is: 104,467,819.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,589,024.21 : 177,431,818.03 = 75,710,292.96 : x
  2. Step 2: Convert to fraction form
    128,589,024.21/177,431,818.03 = 75,710,292.96/x
  3. Step 3: Cross multiply
    128,589,024.21x = 177,431,818.03 × 75,710,292.96
  4. Step 4: Simplify right side
    128,589,024.21x = 13,433,414,923,476,708
  5. Step 5: Solve for x
    x = 13,433,414,923,476,708/128,589,024.21
  6. Step 6: Final answer
    x = 104,467,819.13

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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.