Home / 393,369,148.20-590,053,722.30-278,483,413.80

Finding the Fourth Proportional to 393,369,148.20, 590,053,722.30 and 278,483,413.80

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Solution

The fourth proportional to 393,369,148.20, 590,053,722.30 and 278,483,413.80 is: 417,725,120.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,369,148.20 : 590,053,722.30 = 278,483,413.80 : x
  2. Step 2: Convert to fraction form
    393,369,148.20/590,053,722.30 = 278,483,413.80/x
  3. Step 3: Cross multiply
    393,369,148.20x = 590,053,722.30 × 278,483,413.80
  4. Step 4: Simplify right side
    393,369,148.20x = 164,320,174,911,501,184
  5. Step 5: Solve for x
    x = 164,320,174,911,501,184/393,369,148.20
  6. Step 6: Final answer
    x = 417,725,120.70

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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.