Home / 48,587,999.40-72,909,992.70-18,317,586.60

Finding the Fourth Proportional to 48,587,999.40, 72,909,992.70 and 18,317,586.60

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Solution

The fourth proportional to 48,587,999.40, 72,909,992.70 and 18,317,586.60 is: 27,486,933.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,587,999.40 : 72,909,992.70 = 18,317,586.60 : x
  2. Step 2: Convert to fraction form
    48,587,999.40/72,909,992.70 = 18,317,586.60/x
  3. Step 3: Cross multiply
    48,587,999.40x = 72,909,992.70 × 18,317,586.60
  4. Step 4: Simplify right side
    48,587,999.40x = 1,335,535,105,287,618
  5. Step 5: Solve for x
    x = 1,335,535,105,287,618/48,587,999.40
  6. Step 6: Final answer
    x = 27,486,933.44

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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.