Home / 523,346,443.15-722,222,867.97-288,405,533.29

Finding the Fourth Proportional to 523,346,443.15, 722,222,867.97 and 288,405,533.29

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Solution

The fourth proportional to 523,346,443.15, 722,222,867.97 and 288,405,533.29 is: 398,002,268.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,346,443.15 : 722,222,867.97 = 288,405,533.29 : x
  2. Step 2: Convert to fraction form
    523,346,443.15/722,222,867.97 = 288,405,533.29/x
  3. Step 3: Cross multiply
    523,346,443.15x = 722,222,867.97 × 288,405,533.29
  4. Step 4: Simplify right side
    523,346,443.15x = 208,293,071,391,121,120
  5. Step 5: Solve for x
    x = 208,293,071,391,121,120/523,346,443.15
  6. Step 6: Final answer
    x = 398,002,268.13

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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.