Home / 78,314,794.30-117,360,217.05-57,683,511.10

Finding the Fourth Proportional to 78,314,794.30, 117,360,217.05 and 57,683,511.10

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Solution

The fourth proportional to 78,314,794.30, 117,360,217.05 and 57,683,511.10 is: 86,442,790.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,314,794.30 : 117,360,217.05 = 57,683,511.10 : x
  2. Step 2: Convert to fraction form
    78,314,794.30/117,360,217.05 = 57,683,511.10/x
  3. Step 3: Cross multiply
    78,314,794.30x = 117,360,217.05 × 57,683,511.10
  4. Step 4: Simplify right side
    78,314,794.30x = 6,769,749,382,902,084
  5. Step 5: Solve for x
    x = 6,769,749,382,902,084/78,314,794.30
  6. Step 6: Final answer
    x = 86,442,790.83

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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.