Home / 252,359,981.30-378,570,199-77,460,109.22

Finding the Fourth Proportional to 252,359,981.30, 378,570,199 and 77,460,109.22

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Solution

The fourth proportional to 252,359,981.30, 378,570,199 and 77,460,109.22 is: 116,199,441.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,359,981.30 : 378,570,199 = 77,460,109.22 : x
  2. Step 2: Convert to fraction form
    252,359,981.30/378,570,199 = 77,460,109.22/x
  3. Step 3: Cross multiply
    252,359,981.30x = 378,570,199 × 77,460,109.22
  4. Step 4: Simplify right side
    252,359,981.30x = 29,324,088,961,977,136
  5. Step 5: Solve for x
    x = 29,324,088,961,977,136/252,359,981.30
  6. Step 6: Final answer
    x = 116,199,441.81

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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.