Home / 1,121,479,499.70-1,683,733,856.40-655,618,319.10

Finding the Fourth Proportional to 1,121,479,499.70, 1,683,733,856.40 and 655,618,319.10

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Solution

The fourth proportional to 1,121,479,499.70, 1,683,733,856.40 and 655,618,319.10 is: 984,312,919.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,479,499.70 : 1,683,733,856.40 = 655,618,319.10 : x
  2. Step 2: Convert to fraction form
    1,121,479,499.70/1,683,733,856.40 = 655,618,319.10/x
  3. Step 3: Cross multiply
    1,121,479,499.70x = 1,683,733,856.40 × 655,618,319.10
  4. Step 4: Simplify right side
    1,121,479,499.70x = 1,103,886,760,744,728,832
  5. Step 5: Solve for x
    x = 1,103,886,760,744,728,832/1,121,479,499.70
  6. Step 6: Final answer
    x = 984,312,919.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.