Home / 81,552,001.80-122,328,002.70-49,303,374.60

Finding the Fourth Proportional to 81,552,001.80, 122,328,002.70 and 49,303,374.60

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Solution

The fourth proportional to 81,552,001.80, 122,328,002.70 and 49,303,374.60 is: 73,955,061.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,552,001.80 : 122,328,002.70 = 49,303,374.60 : x
  2. Step 2: Convert to fraction form
    81,552,001.80/122,328,002.70 = 49,303,374.60/x
  3. Step 3: Cross multiply
    81,552,001.80x = 122,328,002.70 × 49,303,374.60
  4. Step 4: Simplify right side
    81,552,001.80x = 6,031,183,341,187,912
  5. Step 5: Solve for x
    x = 6,031,183,341,187,912/81,552,001.80
  6. Step 6: Final answer
    x = 73,955,061.90

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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.