Home / 1,121,479,501.20-1,683,733,858.65-655,618,320.60

Finding the Fourth Proportional to 1,121,479,501.20, 1,683,733,858.65 and 655,618,320.60

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Solution

The fourth proportional to 1,121,479,501.20, 1,683,733,858.65 and 655,618,320.60 is: 984,312,921.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,479,501.20 : 1,683,733,858.65 = 655,618,320.60 : x
  2. Step 2: Convert to fraction form
    1,121,479,501.20/1,683,733,858.65 = 655,618,320.60/x
  3. Step 3: Cross multiply
    1,121,479,501.20x = 1,683,733,858.65 × 655,618,320.60
  4. Step 4: Simplify right side
    1,121,479,501.20x = 1,103,886,764,745,470,848
  5. Step 5: Solve for x
    x = 1,103,886,764,745,470,848/1,121,479,501.20
  6. Step 6: Final answer
    x = 984,312,921.96

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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.