Home / 393,984,013.60-590,976,020.40-248,865,191.20

Finding the Fourth Proportional to 393,984,013.60, 590,976,020.40 and 248,865,191.20

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Solution

The fourth proportional to 393,984,013.60, 590,976,020.40 and 248,865,191.20 is: 373,297,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,984,013.60 : 590,976,020.40 = 248,865,191.20 : x
  2. Step 2: Convert to fraction form
    393,984,013.60/590,976,020.40 = 248,865,191.20/x
  3. Step 3: Cross multiply
    393,984,013.60x = 590,976,020.40 × 248,865,191.20
  4. Step 4: Simplify right side
    393,984,013.60x = 147,073,360,311,461,088
  5. Step 5: Solve for x
    x = 147,073,360,311,461,088/393,984,013.60
  6. Step 6: Final answer
    x = 373,297,786.80

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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.