Home / 393,984,653.40-590,976,980.10-372,821,491.80

Finding the Fourth Proportional to 393,984,653.40, 590,976,980.10 and 372,821,491.80

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Solution

The fourth proportional to 393,984,653.40, 590,976,980.10 and 372,821,491.80 is: 559,232,237.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,984,653.40 : 590,976,980.10 = 372,821,491.80 : x
  2. Step 2: Convert to fraction form
    393,984,653.40/590,976,980.10 = 372,821,491.80/x
  3. Step 3: Cross multiply
    393,984,653.40x = 590,976,980.10 × 372,821,491.80
  4. Step 4: Simplify right side
    393,984,653.40x = 220,328,919,340,340,928
  5. Step 5: Solve for x
    x = 220,328,919,340,340,928/393,984,653.40
  6. Step 6: Final answer
    x = 559,232,237.70

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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.