Home / 136,818,109.91-205,554,568.60-87,730,137.62

Finding the Fourth Proportional to 136,818,109.91, 205,554,568.60 and 87,730,137.62

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Solution

The fourth proportional to 136,818,109.91, 205,554,568.60 and 87,730,137.62 is: 131,805,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,818,109.91 : 205,554,568.60 = 87,730,137.62 : x
  2. Step 2: Convert to fraction form
    136,818,109.91/205,554,568.60 = 87,730,137.62/x
  3. Step 3: Cross multiply
    136,818,109.91x = 205,554,568.60 × 87,730,137.62
  4. Step 4: Simplify right side
    136,818,109.91x = 18,033,330,591,697,732
  5. Step 5: Solve for x
    x = 18,033,330,591,697,732/136,818,109.91
  6. Step 6: Final answer
    x = 131,805,143.37

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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.