Home / 873,809,677.20-1,311,218,400.60-328,942,246.80

Finding the Fourth Proportional to 873,809,677.20, 1,311,218,400.60 and 328,942,246.80

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Solution

The fourth proportional to 873,809,677.20, 1,311,218,400.60 and 328,942,246.80 is: 493,603,055.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,809,677.20 : 1,311,218,400.60 = 328,942,246.80 : x
  2. Step 2: Convert to fraction form
    873,809,677.20/1,311,218,400.60 = 328,942,246.80/x
  3. Step 3: Cross multiply
    873,809,677.20x = 1,311,218,400.60 × 328,942,246.80
  4. Step 4: Simplify right side
    873,809,677.20x = 431,315,126,738,866,432
  5. Step 5: Solve for x
    x = 431,315,126,738,866,432/873,809,677.20
  6. Step 6: Final answer
    x = 493,603,055.67

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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.