Home / 338,976,005.80-508,464,008.70-257,346,668.20

Finding the Fourth Proportional to 338,976,005.80, 508,464,008.70 and 257,346,668.20

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Solution

The fourth proportional to 338,976,005.80, 508,464,008.70 and 257,346,668.20 is: 386,020,002.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,976,005.80 : 508,464,008.70 = 257,346,668.20 : x
  2. Step 2: Convert to fraction form
    338,976,005.80/508,464,008.70 = 257,346,668.20/x
  3. Step 3: Cross multiply
    338,976,005.80x = 508,464,008.70 × 257,346,668.20
  4. Step 4: Simplify right side
    338,976,005.80x = 130,851,518,538,560,800
  5. Step 5: Solve for x
    x = 130,851,518,538,560,800/338,976,005.80
  6. Step 6: Final answer
    x = 386,020,002.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.