Home / 398,895,057.66-599,250,604.86-288,571,019.70

Finding the Fourth Proportional to 398,895,057.66, 599,250,604.86 and 288,571,019.70

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Solution

The fourth proportional to 398,895,057.66, 599,250,604.86 and 288,571,019.70 is: 433,513,413.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,895,057.66 : 599,250,604.86 = 288,571,019.70 : x
  2. Step 2: Convert to fraction form
    398,895,057.66/599,250,604.86 = 288,571,019.70/x
  3. Step 3: Cross multiply
    398,895,057.66x = 599,250,604.86 × 288,571,019.70
  4. Step 4: Simplify right side
    398,895,057.66x = 172,926,358,100,291,968
  5. Step 5: Solve for x
    x = 172,926,358,100,291,968/398,895,057.66
  6. Step 6: Final answer
    x = 433,513,413.56

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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.