Home / 103,676,405-155,539,801.74-31,872,821

Finding the Fourth Proportional to 103,676,405, 155,539,801.74 and 31,872,821

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Solution

The fourth proportional to 103,676,405, 155,539,801.74 and 31,872,821 is: 47,816,976.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,676,405 : 155,539,801.74 = 31,872,821 : x
  2. Step 2: Convert to fraction form
    103,676,405/155,539,801.74 = 31,872,821/x
  3. Step 3: Cross multiply
    103,676,405x = 155,539,801.74 × 31,872,821
  4. Step 4: Simplify right side
    103,676,405x = 4,957,492,259,234,509
  5. Step 5: Solve for x
    x = 4,957,492,259,234,509/103,676,405
  6. Step 6: Final answer
    x = 47,816,976.86

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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.