Home / 388,612,789.48-582,560,462.94-194,355,165.16

Finding the Fourth Proportional to 388,612,789.48, 582,560,462.94 and 194,355,165.16

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Solution

The fourth proportional to 388,612,789.48, 582,560,462.94 and 194,355,165.16 is: 291,353,342.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,612,789.48 : 582,560,462.94 = 194,355,165.16 : x
  2. Step 2: Convert to fraction form
    388,612,789.48/582,560,462.94 = 194,355,165.16/x
  3. Step 3: Cross multiply
    388,612,789.48x = 582,560,462.94 × 194,355,165.16
  4. Step 4: Simplify right side
    388,612,789.48x = 113,223,634,990,389,776
  5. Step 5: Solve for x
    x = 113,223,634,990,389,776/388,612,789.48
  6. Step 6: Final answer
    x = 291,353,342.08

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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.