Home / 1,217,282,644.81-1,679,708,331.88-681,463,650.43

Finding the Fourth Proportional to 1,217,282,644.81, 1,679,708,331.88 and 681,463,650.43

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Solution

The fourth proportional to 1,217,282,644.81, 1,679,708,331.88 and 681,463,650.43 is: 940,340,500.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,282,644.81 : 1,679,708,331.88 = 681,463,650.43 : x
  2. Step 2: Convert to fraction form
    1,217,282,644.81/1,679,708,331.88 = 681,463,650.43/x
  3. Step 3: Cross multiply
    1,217,282,644.81x = 1,679,708,331.88 × 681,463,650.43
  4. Step 4: Simplify right side
    1,217,282,644.81x = 1,144,660,171,500,630,784
  5. Step 5: Solve for x
    x = 1,144,660,171,500,630,784/1,217,282,644.81
  6. Step 6: Final answer
    x = 940,340,500.52

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Half scale
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Double scale
Find fourth proportional to 1,217,282,645.81, 1,679,708,333.26 and 681,463,651.43
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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.