Home / 77,880,073.10-116,820,109.65-39,616,321.10

Finding the Fourth Proportional to 77,880,073.10, 116,820,109.65 and 39,616,321.10

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Solution

The fourth proportional to 77,880,073.10, 116,820,109.65 and 39,616,321.10 is: 59,424,481.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,880,073.10 : 116,820,109.65 = 39,616,321.10 : x
  2. Step 2: Convert to fraction form
    77,880,073.10/116,820,109.65 = 39,616,321.10/x
  3. Step 3: Cross multiply
    77,880,073.10x = 116,820,109.65 × 39,616,321.10
  4. Step 4: Simplify right side
    77,880,073.10x = 4,627,982,974,831,609
  5. Step 5: Solve for x
    x = 4,627,982,974,831,609/77,880,073.10
  6. Step 6: Final answer
    x = 59,424,481.65

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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.