Home / 209,990,758.58-315,001,273.17-80,598,368.90

Finding the Fourth Proportional to 209,990,758.58, 315,001,273.17 and 80,598,368.90

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Solution

The fourth proportional to 209,990,758.58, 315,001,273.17 and 80,598,368.90 is: 120,903,362.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,990,758.58 : 315,001,273.17 = 80,598,368.90 : x
  2. Step 2: Convert to fraction form
    209,990,758.58/315,001,273.17 = 80,598,368.90/x
  3. Step 3: Cross multiply
    209,990,758.58x = 315,001,273.17 × 80,598,368.90
  4. Step 4: Simplify right side
    209,990,758.58x = 25,388,588,818,925,336
  5. Step 5: Solve for x
    x = 25,388,588,818,925,336/209,990,758.58
  6. Step 6: Final answer
    x = 120,903,362.56

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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.