Home / 163,315,216.20-244,972,824.30-81,685,878.60

Finding the Fourth Proportional to 163,315,216.20, 244,972,824.30 and 81,685,878.60

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Solution

The fourth proportional to 163,315,216.20, 244,972,824.30 and 81,685,878.60 is: 122,528,817.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,315,216.20 : 244,972,824.30 = 81,685,878.60 : x
  2. Step 2: Convert to fraction form
    163,315,216.20/244,972,824.30 = 81,685,878.60/x
  3. Step 3: Cross multiply
    163,315,216.20x = 244,972,824.30 × 81,685,878.60
  4. Step 4: Simplify right side
    163,315,216.20x = 20,010,820,386,068,928
  5. Step 5: Solve for x
    x = 20,010,820,386,068,928/163,315,216.20
  6. Step 6: Final answer
    x = 122,528,817.90

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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.