Home / 1,217,282,652.14-1,679,708,342.03-681,463,657.85

Finding the Fourth Proportional to 1,217,282,652.14, 1,679,708,342.03 and 681,463,657.85

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Solution

The fourth proportional to 1,217,282,652.14, 1,679,708,342.03 and 681,463,657.85 is: 940,340,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,282,652.14 : 1,679,708,342.03 = 681,463,657.85 : x
  2. Step 2: Convert to fraction form
    1,217,282,652.14/1,679,708,342.03 = 681,463,657.85/x
  3. Step 3: Cross multiply
    1,217,282,652.14x = 1,679,708,342.03 × 681,463,657.85
  4. Step 4: Simplify right side
    1,217,282,652.14x = 1,144,660,190,869,116,928
  5. Step 5: Solve for x
    x = 1,144,660,190,869,116,928/1,217,282,652.14
  6. Step 6: Final answer
    x = 940,340,510.78

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Double scale
Find fourth proportional to 1,217,282,653.14, 1,679,708,343.40 and 681,463,658.85
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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.