Home / 28,540,879,104.40-42,811,318,656.60-7,861,446,912.40

Finding the Fourth Proportional to 28,540,879,104.40, 42,811,318,656.60 and 7,861,446,912.40

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Solution

The fourth proportional to 28,540,879,104.40, 42,811,318,656.60 and 7,861,446,912.40 is: 11,792,170,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540,879,104.40 : 42,811,318,656.60 = 7,861,446,912.40 : x
  2. Step 2: Convert to fraction form
    28,540,879,104.40/42,811,318,656.60 = 7,861,446,912.40/x
  3. Step 3: Cross multiply
    28,540,879,104.40x = 42,811,318,656.60 × 7,861,446,912.40
  4. Step 4: Simplify right side
    28,540,879,104.40x = 336,558,908,868,700,536,832
  5. Step 5: Solve for x
    x = 336,558,908,868,700,536,832/28,540,879,104.40
  6. Step 6: Final answer
    x = 11,792,170,368.60

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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.