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Finding the Fourth Proportional to 2,989,738,679.90, 4,484,608,019.85 and 2,989,738,679.90

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Solution

The fourth proportional to 2,989,738,679.90, 4,484,608,019.85 and 2,989,738,679.90 is: 4,484,608,019.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,738,679.90 : 4,484,608,019.85 = 2,989,738,679.90 : x
  2. Step 2: Convert to fraction form
    2,989,738,679.90/4,484,608,019.85 = 2,989,738,679.90/x
  3. Step 3: Cross multiply
    2,989,738,679.90x = 4,484,608,019.85 × 2,989,738,679.90
  4. Step 4: Simplify right side
    2,989,738,679.90x = 13,407,806,061,135,294,464
  5. Step 5: Solve for x
    x = 13,407,806,061,135,294,464/2,989,738,679.90
  6. Step 6: Final answer
    x = 4,484,608,019.85

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1.5x scale

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.