Home / 523,346,556.80-722,223,024.72-288,405,646.88

Finding the Fourth Proportional to 523,346,556.80, 722,223,024.72 and 288,405,646.88

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Solution

The fourth proportional to 523,346,556.80, 722,223,024.72 and 288,405,646.88 is: 398,002,424.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,346,556.80 : 722,223,024.72 = 288,405,646.88 : x
  2. Step 2: Convert to fraction form
    523,346,556.80/722,223,024.72 = 288,405,646.88/x
  3. Step 3: Cross multiply
    523,346,556.80x = 722,223,024.72 × 288,405,646.88
  4. Step 4: Simplify right side
    523,346,556.80x = 208,293,198,636,001,824
  5. Step 5: Solve for x
    x = 208,293,198,636,001,824/523,346,556.80
  6. Step 6: Final answer
    x = 398,002,424.84

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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.