Home / 399,480,399.88-599,220,599.81-112,266,063.88

Finding the Fourth Proportional to 399,480,399.88, 599,220,599.81 and 112,266,063.88

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Solution

The fourth proportional to 399,480,399.88, 599,220,599.81 and 112,266,063.88 is: 168,399,095.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,480,399.88 : 599,220,599.81 = 112,266,063.88 : x
  2. Step 2: Convert to fraction form
    399,480,399.88/599,220,599.81 = 112,266,063.88/x
  3. Step 3: Cross multiply
    399,480,399.88x = 599,220,599.81 × 112,266,063.88
  4. Step 4: Simplify right side
    399,480,399.88x = 67,272,138,133,765,936
  5. Step 5: Solve for x
    x = 67,272,138,133,765,936/399,480,399.88
  6. Step 6: Final answer
    x = 168,399,095.81

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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.