Home / 28,391,999.80-42,587,999.70-15,607,564.60

Finding the Fourth Proportional to 28,391,999.80, 42,587,999.70 and 15,607,564.60

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Solution

The fourth proportional to 28,391,999.80, 42,587,999.70 and 15,607,564.60 is: 23,411,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,391,999.80 : 42,587,999.70 = 15,607,564.60 : x
  2. Step 2: Convert to fraction form
    28,391,999.80/42,587,999.70 = 15,607,564.60/x
  3. Step 3: Cross multiply
    28,391,999.80x = 42,587,999.70 × 15,607,564.60
  4. Step 4: Simplify right side
    28,391,999.80x = 664,694,956,502,530.62
  5. Step 5: Solve for x
    x = 664,694,956,502,530.62/28,391,999.80
  6. Step 6: Final answer
    x = 23,411,346.90

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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.