Home / 81,607,940.60-122,411,910.90-30,483,316.40

Finding the Fourth Proportional to 81,607,940.60, 122,411,910.90 and 30,483,316.40

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Solution

The fourth proportional to 81,607,940.60, 122,411,910.90 and 30,483,316.40 is: 45,724,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,607,940.60 : 122,411,910.90 = 30,483,316.40 : x
  2. Step 2: Convert to fraction form
    81,607,940.60/122,411,910.90 = 30,483,316.40/x
  3. Step 3: Cross multiply
    81,607,940.60x = 122,411,910.90 × 30,483,316.40
  4. Step 4: Simplify right side
    81,607,940.60x = 3,731,521,011,093,309
  5. Step 5: Solve for x
    x = 3,731,521,011,093,309/81,607,940.60
  6. Step 6: Final answer
    x = 45,724,974.60

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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.