Home / 393,987,731.80-590,981,597.70-248,868,909.40

Finding the Fourth Proportional to 393,987,731.80, 590,981,597.70 and 248,868,909.40

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Solution

The fourth proportional to 393,987,731.80, 590,981,597.70 and 248,868,909.40 is: 373,303,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,987,731.80 : 590,981,597.70 = 248,868,909.40 : x
  2. Step 2: Convert to fraction form
    393,987,731.80/590,981,597.70 = 248,868,909.40/x
  3. Step 3: Cross multiply
    393,987,731.80x = 590,981,597.70 × 248,868,909.40
  4. Step 4: Simplify right side
    393,987,731.80x = 147,076,945,695,068,576
  5. Step 5: Solve for x
    x = 147,076,945,695,068,576/393,987,731.80
  6. Step 6: Final answer
    x = 373,303,364.10

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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.