Home / 626,361,711.89-939,188,422.02-206,069,349.65

Finding the Fourth Proportional to 626,361,711.89, 939,188,422.02 and 206,069,349.65

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Solution

The fourth proportional to 626,361,711.89, 939,188,422.02 and 206,069,349.65 is: 308,987,512.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,361,711.89 : 939,188,422.02 = 206,069,349.65 : x
  2. Step 2: Convert to fraction form
    626,361,711.89/939,188,422.02 = 206,069,349.65/x
  3. Step 3: Cross multiply
    626,361,711.89x = 939,188,422.02 × 206,069,349.65
  4. Step 4: Simplify right side
    626,361,711.89x = 193,537,947,320,547,968
  5. Step 5: Solve for x
    x = 193,537,947,320,547,968/626,361,711.89
  6. Step 6: Final answer
    x = 308,987,512.56

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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.