Home / 523,346,479.65-722,222,918.37-288,405,569.79

Finding the Fourth Proportional to 523,346,479.65, 722,222,918.37 and 288,405,569.79

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Solution

The fourth proportional to 523,346,479.65, 722,222,918.37 and 288,405,569.79 is: 398,002,318.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,346,479.65 : 722,222,918.37 = 288,405,569.79 : x
  2. Step 2: Convert to fraction form
    523,346,479.65/722,222,918.37 = 288,405,569.79/x
  3. Step 3: Cross multiply
    523,346,479.65x = 722,222,918.37 × 288,405,569.79
  4. Step 4: Simplify right side
    523,346,479.65x = 208,293,112,287,896,512
  5. Step 5: Solve for x
    x = 208,293,112,287,896,512/523,346,479.65
  6. Step 6: Final answer
    x = 398,002,318.52

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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.