Home / 53,001,211.20-79,403,839.20-30,214,420.80

Finding the Fourth Proportional to 53,001,211.20, 79,403,839.20 and 30,214,420.80

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Solution

The fourth proportional to 53,001,211.20, 79,403,839.20 and 30,214,420.80 is: 45,265,777.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,001,211.20 : 79,403,839.20 = 30,214,420.80 : x
  2. Step 2: Convert to fraction form
    53,001,211.20/79,403,839.20 = 30,214,420.80/x
  3. Step 3: Cross multiply
    53,001,211.20x = 79,403,839.20 × 30,214,420.80
  4. Step 4: Simplify right side
    53,001,211.20x = 2,399,141,010,724,335.50
  5. Step 5: Solve for x
    x = 2,399,141,010,724,335.50/53,001,211.20
  6. Step 6: Final answer
    x = 45,265,777.07

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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.