Home / 1,192,111,720.20-1,790,208,002.70-647,916,136.20

Finding the Fourth Proportional to 1,192,111,720.20, 1,790,208,002.70 and 647,916,136.20

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Solution

The fourth proportional to 1,192,111,720.20, 1,790,208,002.70 and 647,916,136.20 is: 972,983,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,111,720.20 : 1,790,208,002.70 = 647,916,136.20 : x
  2. Step 2: Convert to fraction form
    1,192,111,720.20/1,790,208,002.70 = 647,916,136.20/x
  3. Step 3: Cross multiply
    1,192,111,720.20x = 1,790,208,002.70 × 647,916,136.20
  4. Step 4: Simplify right side
    1,192,111,720.20x = 1,159,904,652,103,703,296
  5. Step 5: Solve for x
    x = 1,159,904,652,103,703,296/1,192,111,720.20
  6. Step 6: Final answer
    x = 972,983,179.72

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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.