Home / 1,260,317,716.85-1,890,450,614.78-420,021,483.38

Finding the Fourth Proportional to 1,260,317,716.85, 1,890,450,614.78 and 420,021,483.38

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Solution

The fourth proportional to 1,260,317,716.85, 1,890,450,614.78 and 420,021,483.38 is: 630,023,573.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,317,716.85 : 1,890,450,614.78 = 420,021,483.38 : x
  2. Step 2: Convert to fraction form
    1,260,317,716.85/1,890,450,614.78 = 420,021,483.38/x
  3. Step 3: Cross multiply
    1,260,317,716.85x = 1,890,450,614.78 × 420,021,483.38
  4. Step 4: Simplify right side
    1,260,317,716.85x = 794,029,871,476,528,512
  5. Step 5: Solve for x
    x = 794,029,871,476,528,512/1,260,317,716.85
  6. Step 6: Final answer
    x = 630,023,573.31

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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.