Home / 71,852,430.40-107,778,645.60-20,736,116.80

Finding the Fourth Proportional to 71,852,430.40, 107,778,645.60 and 20,736,116.80

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Solution

The fourth proportional to 71,852,430.40, 107,778,645.60 and 20,736,116.80 is: 31,104,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,852,430.40 : 107,778,645.60 = 20,736,116.80 : x
  2. Step 2: Convert to fraction form
    71,852,430.40/107,778,645.60 = 20,736,116.80/x
  3. Step 3: Cross multiply
    71,852,430.40x = 107,778,645.60 × 20,736,116.80
  4. Step 4: Simplify right side
    71,852,430.40x = 2,234,910,583,707,406
  5. Step 5: Solve for x
    x = 2,234,910,583,707,406/71,852,430.40
  6. Step 6: Final answer
    x = 31,104,175.20

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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.