Home / 1,217,282,662.51-1,679,708,356.33-681,463,668.22

Finding the Fourth Proportional to 1,217,282,662.51, 1,679,708,356.33 and 681,463,668.22

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Solution

The fourth proportional to 1,217,282,662.51, 1,679,708,356.33 and 681,463,668.22 is: 940,340,525.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,282,662.51 : 1,679,708,356.33 = 681,463,668.22 : x
  2. Step 2: Convert to fraction form
    1,217,282,662.51/1,679,708,356.33 = 681,463,668.22/x
  3. Step 3: Cross multiply
    1,217,282,662.51x = 1,679,708,356.33 × 681,463,668.22
  4. Step 4: Simplify right side
    1,217,282,662.51x = 1,144,660,218,044,428,672
  5. Step 5: Solve for x
    x = 1,144,660,218,044,428,672/1,217,282,662.51
  6. Step 6: Final answer
    x = 940,340,525.09

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Half scale
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Double scale
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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.