Home / 259,221,787.47-388,833,075.53-105,867,843.90

Finding the Fourth Proportional to 259,221,787.47, 388,833,075.53 and 105,867,843.90

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Solution

The fourth proportional to 259,221,787.47, 388,833,075.53 and 105,867,843.90 is: 158,801,926.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,221,787.47 : 388,833,075.53 = 105,867,843.90 : x
  2. Step 2: Convert to fraction form
    259,221,787.47/388,833,075.53 = 105,867,843.90/x
  3. Step 3: Cross multiply
    259,221,787.47x = 388,833,075.53 × 105,867,843.90
  4. Step 4: Simplify right side
    259,221,787.47x = 41,164,919,342,837,608
  5. Step 5: Solve for x
    x = 41,164,919,342,837,608/259,221,787.47
  6. Step 6: Final answer
    x = 158,801,926.89

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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.