Home / 388,340,491.20-582,510,736.80-235,955,774.40

Finding the Fourth Proportional to 388,340,491.20, 582,510,736.80 and 235,955,774.40

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Solution

The fourth proportional to 388,340,491.20, 582,510,736.80 and 235,955,774.40 is: 353,933,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,340,491.20 : 582,510,736.80 = 235,955,774.40 : x
  2. Step 2: Convert to fraction form
    388,340,491.20/582,510,736.80 = 235,955,774.40/x
  3. Step 3: Cross multiply
    388,340,491.20x = 582,510,736.80 × 235,955,774.40
  4. Step 4: Simplify right side
    388,340,491.20x = 137,446,771,997,958,576
  5. Step 5: Solve for x
    x = 137,446,771,997,958,576/388,340,491.20
  6. Step 6: Final answer
    x = 353,933,661.60

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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.