Home / 209,163,225.66-313,783,145.22-86,274,505.90

Finding the Fourth Proportional to 209,163,225.66, 313,783,145.22 and 86,274,505.90

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Solution

The fourth proportional to 209,163,225.66, 313,783,145.22 and 86,274,505.90 is: 129,427,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,163,225.66 : 313,783,145.22 = 86,274,505.90 : x
  2. Step 2: Convert to fraction form
    209,163,225.66/313,783,145.22 = 86,274,505.90/x
  3. Step 3: Cross multiply
    209,163,225.66x = 313,783,145.22 × 86,274,505.90
  4. Step 4: Simplify right side
    209,163,225.66x = 27,071,485,813,323,948
  5. Step 5: Solve for x
    x = 27,071,485,813,323,948/209,163,225.66
  6. Step 6: Final answer
    x = 129,427,559.40

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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.