Home / 78,314,795.30-117,360,218.55-57,683,512.10

Finding the Fourth Proportional to 78,314,795.30, 117,360,218.55 and 57,683,512.10

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Solution

The fourth proportional to 78,314,795.30, 117,360,218.55 and 57,683,512.10 is: 86,442,792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,314,795.30 : 117,360,218.55 = 57,683,512.10 : x
  2. Step 2: Convert to fraction form
    78,314,795.30/117,360,218.55 = 57,683,512.10/x
  3. Step 3: Cross multiply
    78,314,795.30x = 117,360,218.55 × 57,683,512.10
  4. Step 4: Simplify right side
    78,314,795.30x = 6,769,749,586,787,569
  5. Step 5: Solve for x
    x = 6,769,749,586,787,569/78,314,795.30
  6. Step 6: Final answer
    x = 86,442,792.33

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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.