Home / 1,170,072,012.30-1,755,367,834.05-393,695,760.30

Finding the Fourth Proportional to 1,170,072,012.30, 1,755,367,834.05 and 393,695,760.30

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Solution

The fourth proportional to 1,170,072,012.30, 1,755,367,834.05 and 393,695,760.30 is: 590,631,060.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,072,012.30 : 1,755,367,834.05 = 393,695,760.30 : x
  2. Step 2: Convert to fraction form
    1,170,072,012.30/1,755,367,834.05 = 393,695,760.30/x
  3. Step 3: Cross multiply
    1,170,072,012.30x = 1,755,367,834.05 × 393,695,760.30
  4. Step 4: Simplify right side
    1,170,072,012.30x = 691,080,874,032,478,976
  5. Step 5: Solve for x
    x = 691,080,874,032,478,976/1,170,072,012.30
  6. Step 6: Final answer
    x = 590,631,060.97

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Double scale
Find fourth proportional to 1,170,072,013.30, 1,755,367,835.55 and 393,695,761.30
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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.