Home / 393,987,712.80-590,981,569.20-248,868,890.40

Finding the Fourth Proportional to 393,987,712.80, 590,981,569.20 and 248,868,890.40

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Solution

The fourth proportional to 393,987,712.80, 590,981,569.20 and 248,868,890.40 is: 373,303,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,987,712.80 : 590,981,569.20 = 248,868,890.40 : x
  2. Step 2: Convert to fraction form
    393,987,712.80/590,981,569.20 = 248,868,890.40/x
  3. Step 3: Cross multiply
    393,987,712.80x = 590,981,569.20 × 248,868,890.40
  4. Step 4: Simplify right side
    393,987,712.80x = 147,076,927,373,654,816
  5. Step 5: Solve for x
    x = 147,076,927,373,654,816/393,987,712.80
  6. Step 6: Final answer
    x = 373,303,335.60

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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.