Home / 399,434,283.07-551,171,571.63-220,794,039.91

Finding the Fourth Proportional to 399,434,283.07, 551,171,571.63 and 220,794,039.91

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Solution

The fourth proportional to 399,434,283.07, 551,171,571.63 and 220,794,039.91 is: 304,669,386.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,434,283.07 : 551,171,571.63 = 220,794,039.91 : x
  2. Step 2: Convert to fraction form
    399,434,283.07/551,171,571.63 = 220,794,039.91/x
  3. Step 3: Cross multiply
    399,434,283.07x = 551,171,571.63 × 220,794,039.91
  4. Step 4: Simplify right side
    399,434,283.07x = 121,695,397,983,731,648
  5. Step 5: Solve for x
    x = 121,695,397,983,731,648/399,434,283.07
  6. Step 6: Final answer
    x = 304,669,386.53

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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.