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Finding the Fourth Proportional to 71,010,002.40, 106,515,003.60 and 40,776,914.40

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Solution

The fourth proportional to 71,010,002.40, 106,515,003.60 and 40,776,914.40 is: 61,165,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,010,002.40 : 106,515,003.60 = 40,776,914.40 : x
  2. Step 2: Convert to fraction form
    71,010,002.40/106,515,003.60 = 40,776,914.40/x
  3. Step 3: Cross multiply
    71,010,002.40x = 106,515,003.60 × 40,776,914.40
  4. Step 4: Simplify right side
    71,010,002.40x = 4,343,353,184,112,891.50
  5. Step 5: Solve for x
    x = 4,343,353,184,112,891.50/71,010,002.40
  6. Step 6: Final answer
    x = 61,165,371.60

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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.