Home / 1,218,567,243.75-1,681,622,796.38-697,046,475.75

Finding the Fourth Proportional to 1,218,567,243.75, 1,681,622,796.38 and 697,046,475.75

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Solution

The fourth proportional to 1,218,567,243.75, 1,681,622,796.38 and 697,046,475.75 is: 961,924,136.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,567,243.75 : 1,681,622,796.38 = 697,046,475.75 : x
  2. Step 2: Convert to fraction form
    1,218,567,243.75/1,681,622,796.38 = 697,046,475.75/x
  3. Step 3: Cross multiply
    1,218,567,243.75x = 1,681,622,796.38 × 697,046,475.75
  4. Step 4: Simplify right side
    1,218,567,243.75x = 1,172,169,243,754,053,632
  5. Step 5: Solve for x
    x = 1,172,169,243,754,053,632/1,218,567,243.75
  6. Step 6: Final answer
    x = 961,924,136.54

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Double scale
Find fourth proportional to 1,218,567,244.75, 1,681,622,797.76 and 697,046,476.75
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1.5x scale

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.