Home / 419,905,007.10-629,857,510.65-147,303,330.30

Finding the Fourth Proportional to 419,905,007.10, 629,857,510.65 and 147,303,330.30

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Solution

The fourth proportional to 419,905,007.10, 629,857,510.65 and 147,303,330.30 is: 220,954,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,007.10 : 629,857,510.65 = 147,303,330.30 : x
  2. Step 2: Convert to fraction form
    419,905,007.10/629,857,510.65 = 147,303,330.30/x
  3. Step 3: Cross multiply
    419,905,007.10x = 629,857,510.65 × 147,303,330.30
  4. Step 4: Simplify right side
    419,905,007.10x = 92,780,108,933,212,720
  5. Step 5: Solve for x
    x = 92,780,108,933,212,720/419,905,007.10
  6. Step 6: Final answer
    x = 220,954,995.45

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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.