Home / 393,984,109.60-590,976,164.40-238,787,591.20

Finding the Fourth Proportional to 393,984,109.60, 590,976,164.40 and 238,787,591.20

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Solution

The fourth proportional to 393,984,109.60, 590,976,164.40 and 238,787,591.20 is: 358,181,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,984,109.60 : 590,976,164.40 = 238,787,591.20 : x
  2. Step 2: Convert to fraction form
    393,984,109.60/590,976,164.40 = 238,787,591.20/x
  3. Step 3: Cross multiply
    393,984,109.60x = 590,976,164.40 × 238,787,591.20
  4. Step 4: Simplify right side
    393,984,109.60x = 141,117,774,753,691,184
  5. Step 5: Solve for x
    x = 141,117,774,753,691,184/393,984,109.60
  6. Step 6: Final answer
    x = 358,181,386.80

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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.