Home / 259,024,240.20-388,486,593.90-77,277,347.40

Finding the Fourth Proportional to 259,024,240.20, 388,486,593.90 and 77,277,347.40

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Solution

The fourth proportional to 259,024,240.20, 388,486,593.90 and 77,277,347.40 is: 115,901,173.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,024,240.20 : 388,486,593.90 = 77,277,347.40 : x
  2. Step 2: Convert to fraction form
    259,024,240.20/388,486,593.90 = 77,277,347.40/x
  3. Step 3: Cross multiply
    259,024,240.20x = 388,486,593.90 × 77,277,347.40
  4. Step 4: Simplify right side
    259,024,240.20x = 30,021,213,477,053,020
  5. Step 5: Solve for x
    x = 30,021,213,477,053,020/259,024,240.20
  6. Step 6: Final answer
    x = 115,901,173.78

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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.