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Finding the Fourth Proportional to 419,906,039.70, 629,859,059.55 and 236,240,030.10

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Solution

The fourth proportional to 419,906,039.70, 629,859,059.55 and 236,240,030.10 is: 354,360,045.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,906,039.70 : 629,859,059.55 = 236,240,030.10 : x
  2. Step 2: Convert to fraction form
    419,906,039.70/629,859,059.55 = 236,240,030.10/x
  3. Step 3: Cross multiply
    419,906,039.70x = 629,859,059.55 × 236,240,030.10
  4. Step 4: Simplify right side
    419,906,039.70x = 148,797,923,186,849,664
  5. Step 5: Solve for x
    x = 148,797,923,186,849,664/419,906,039.70
  6. Step 6: Final answer
    x = 354,360,045.15

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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.