Home / 213,686,911,934.09-320,540,676,726.32-70,262,764,851.83

Finding the Fourth Proportional to 213,686,911,934.09, 320,540,676,726.32 and 70,262,764,851.83

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Solution

The fourth proportional to 213,686,911,934.09, 320,540,676,726.32 and 70,262,764,851.83 is: 105,397,536,940.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,686,911,934.09 : 320,540,676,726.32 = 70,262,764,851.83 : x
  2. Step 2: Convert to fraction form
    213,686,911,934.09/320,540,676,726.32 = 70,262,764,851.83/x
  3. Step 3: Cross multiply
    213,686,911,934.09x = 320,540,676,726.32 × 70,262,764,851.83
  4. Step 4: Simplify right side
    213,686,911,934.09x = 22,522,074,194,267,556,806,656
  5. Step 5: Solve for x
    x = 22,522,074,194,267,556,806,656/213,686,911,934.09
  6. Step 6: Final answer
    x = 105,397,536,940.47

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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.