Home / 388,538,579.80-582,733,220.10-115,918,240.60

Finding the Fourth Proportional to 388,538,579.80, 582,733,220.10 and 115,918,240.60

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Solution

The fourth proportional to 388,538,579.80, 582,733,220.10 and 115,918,240.60 is: 173,855,089.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,538,579.80 : 582,733,220.10 = 115,918,240.60 : x
  2. Step 2: Convert to fraction form
    388,538,579.80/582,733,220.10 = 115,918,240.60/x
  3. Step 3: Cross multiply
    388,538,579.80x = 582,733,220.10 × 115,918,240.60
  4. Step 4: Simplify right side
    388,538,579.80x = 67,549,409,613,164,552
  5. Step 5: Solve for x
    x = 67,549,409,613,164,552/388,538,579.80
  6. Step 6: Final answer
    x = 173,855,089.62

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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.