Home / 388,396,989.60-582,595,484.40-370,481,085.60

Finding the Fourth Proportional to 388,396,989.60, 582,595,484.40 and 370,481,085.60

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Solution

The fourth proportional to 388,396,989.60, 582,595,484.40 and 370,481,085.60 is: 555,721,628.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,396,989.60 : 582,595,484.40 = 370,481,085.60 : x
  2. Step 2: Convert to fraction form
    388,396,989.60/582,595,484.40 = 370,481,085.60/x
  3. Step 3: Cross multiply
    388,396,989.60x = 582,595,484.40 × 370,481,085.60
  4. Step 4: Simplify right side
    388,396,989.60x = 215,840,607,526,169,856
  5. Step 5: Solve for x
    x = 215,840,607,526,169,856/388,396,989.60
  6. Step 6: Final answer
    x = 555,721,628.40

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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.