Home / 388,373,063.49-582,564,643.62-129,588,283.74

Finding the Fourth Proportional to 388,373,063.49, 582,564,643.62 and 129,588,283.74

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Solution

The fourth proportional to 388,373,063.49, 582,564,643.62 and 129,588,283.74 is: 194,384,110.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,373,063.49 : 582,564,643.62 = 129,588,283.74 : x
  2. Step 2: Convert to fraction form
    388,373,063.49/582,564,643.62 = 129,588,283.74/x
  3. Step 3: Cross multiply
    388,373,063.49x = 582,564,643.62 × 129,588,283.74
  4. Step 4: Simplify right side
    388,373,063.49x = 75,493,552,334,320,544
  5. Step 5: Solve for x
    x = 75,493,552,334,320,544/388,373,063.49
  6. Step 6: Final answer
    x = 194,384,110.10

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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.