Home / 398,835,686.47-550,485,080.34-233,876,400.07

Finding the Fourth Proportional to 398,835,686.47, 550,485,080.34 and 233,876,400.07

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Solution

The fourth proportional to 398,835,686.47, 550,485,080.34 and 233,876,400.07 is: 322,803,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,835,686.47 : 550,485,080.34 = 233,876,400.07 : x
  2. Step 2: Convert to fraction form
    398,835,686.47/550,485,080.34 = 233,876,400.07/x
  3. Step 3: Cross multiply
    398,835,686.47x = 550,485,080.34 × 233,876,400.07
  4. Step 4: Simplify right side
    398,835,686.47x = 128,745,468,882,163,936
  5. Step 5: Solve for x
    x = 128,745,468,882,163,936/398,835,686.47
  6. Step 6: Final answer
    x = 322,803,282.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.