Home / 491,734,544.80-678,632,354.88-280,050,326.08

Finding the Fourth Proportional to 491,734,544.80, 678,632,354.88 and 280,050,326.08

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Solution

The fourth proportional to 491,734,544.80, 678,632,354.88 and 280,050,326.08 is: 386,491,480.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,734,544.80 : 678,632,354.88 = 280,050,326.08 : x
  2. Step 2: Convert to fraction form
    491,734,544.80/678,632,354.88 = 280,050,326.08/x
  3. Step 3: Cross multiply
    491,734,544.80x = 678,632,354.88 × 280,050,326.08
  4. Step 4: Simplify right side
    491,734,544.80x = 190,051,212,272,582,272
  5. Step 5: Solve for x
    x = 190,051,212,272,582,272/491,734,544.80
  6. Step 6: Final answer
    x = 386,491,480.58

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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.