Home / 1,185,848,661.53-1,636,471,120.43-657,292,057.56

Finding the Fourth Proportional to 1,185,848,661.53, 1,636,471,120.43 and 657,292,057.56

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Solution

The fourth proportional to 1,185,848,661.53, 1,636,471,120.43 and 657,292,057.56 is: 907,063,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,848,661.53 : 1,636,471,120.43 = 657,292,057.56 : x
  2. Step 2: Convert to fraction form
    1,185,848,661.53/1,636,471,120.43 = 657,292,057.56/x
  3. Step 3: Cross multiply
    1,185,848,661.53x = 1,636,471,120.43 × 657,292,057.56
  4. Step 4: Simplify right side
    1,185,848,661.53x = 1,075,639,469,884,953,216
  5. Step 5: Solve for x
    x = 1,075,639,469,884,953,216/1,185,848,661.53
  6. Step 6: Final answer
    x = 907,063,021.43

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Double scale
Find fourth proportional to 1,185,848,662.53, 1,636,471,121.81 and 657,292,058.56
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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.