Home / 9,000,489.94-12,420,708.83-4,870,520.65

Finding the Fourth Proportional to 9,000,489.94, 12,420,708.83 and 4,870,520.65

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Solution

The fourth proportional to 9,000,489.94, 12,420,708.83 and 4,870,520.65 is: 6,721,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000,489.94 : 12,420,708.83 = 4,870,520.65 : x
  2. Step 2: Convert to fraction form
    9,000,489.94/12,420,708.83 = 4,870,520.65/x
  3. Step 3: Cross multiply
    9,000,489.94x = 12,420,708.83 × 4,870,520.65
  4. Step 4: Simplify right side
    9,000,489.94x = 60,495,318,880,986.75
  5. Step 5: Solve for x
    x = 60,495,318,880,986.75/9,000,489.94
  6. Step 6: Final answer
    x = 6,721,336.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.