Home / 523,346,451.16-722,222,879-288,405,541.28

Finding the Fourth Proportional to 523,346,451.16, 722,222,879 and 288,405,541.28

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Solution

The fourth proportional to 523,346,451.16, 722,222,879 and 288,405,541.28 is: 398,002,279.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,346,451.16 : 722,222,879 = 288,405,541.28 : x
  2. Step 2: Convert to fraction form
    523,346,451.16/722,222,879 = 288,405,541.28/x
  3. Step 3: Cross multiply
    523,346,451.16x = 722,222,879 × 288,405,541.28
  4. Step 4: Simplify right side
    523,346,451.16x = 208,293,080,342,794,912
  5. Step 5: Solve for x
    x = 208,293,080,342,794,912/523,346,451.16
  6. Step 6: Final answer
    x = 398,002,279.14

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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.