Home / 861,064,976,287.50-1,188,270,144,030.40-465,102,022,834.78

Finding the Fourth Proportional to 861,064,976,287.50, 1,188,270,144,030.40 and 465,102,022,834.78

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Solution

The fourth proportional to 861,064,976,287.50, 1,188,270,144,030.40 and 465,102,022,834.78 is: 641,841,049,029.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,064,976,287.50 : 1,188,270,144,030.40 = 465,102,022,834.78 : x
  2. Step 2: Convert to fraction form
    861,064,976,287.50/1,188,270,144,030.40 = 465,102,022,834.78/x
  3. Step 3: Cross multiply
    861,064,976,287.50x = 1,188,270,144,030.40 × 465,102,022,834.78
  4. Step 4: Simplify right side
    861,064,976,287.50x = 552,666,847,662,714,394,771,456
  5. Step 5: Solve for x
    x = 552,666,847,662,714,394,771,456/861,064,976,287.50
  6. Step 6: Final answer
    x = 641,841,049,029.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.