Home / 28,415,999.40-42,623,999.10-25,673,317.80

Finding the Fourth Proportional to 28,415,999.40, 42,623,999.10 and 25,673,317.80

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Solution

The fourth proportional to 28,415,999.40, 42,623,999.10 and 25,673,317.80 is: 38,509,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,415,999.40 : 42,623,999.10 = 25,673,317.80 : x
  2. Step 2: Convert to fraction form
    28,415,999.40/42,623,999.10 = 25,673,317.80/x
  3. Step 3: Cross multiply
    28,415,999.40x = 42,623,999.10 × 25,673,317.80
  4. Step 4: Simplify right side
    28,415,999.40x = 1,094,299,474,801,214
  5. Step 5: Solve for x
    x = 1,094,299,474,801,214/28,415,999.40
  6. Step 6: Final answer
    x = 38,509,976.70

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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.