Home / 76,668,171.40-114,415,492.19-68,489,294.50

Finding the Fourth Proportional to 76,668,171.40, 114,415,492.19 and 68,489,294.50

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Solution

The fourth proportional to 76,668,171.40, 114,415,492.19 and 68,489,294.50 is: 102,209,772.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,668,171.40 : 114,415,492.19 = 68,489,294.50 : x
  2. Step 2: Convert to fraction form
    76,668,171.40/114,415,492.19 = 68,489,294.50/x
  3. Step 3: Cross multiply
    76,668,171.40x = 114,415,492.19 × 68,489,294.50
  4. Step 4: Simplify right side
    76,668,171.40x = 7,836,236,339,963,360
  5. Step 5: Solve for x
    x = 7,836,236,339,963,360/76,668,171.40
  6. Step 6: Final answer
    x = 102,209,772.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.