Home / 285,091,630.56-393,426,450.06-154,711,438.56

Finding the Fourth Proportional to 285,091,630.56, 393,426,450.06 and 154,711,438.56

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Solution

The fourth proportional to 285,091,630.56, 393,426,450.06 and 154,711,438.56 is: 213,501,785.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,091,630.56 : 393,426,450.06 = 154,711,438.56 : x
  2. Step 2: Convert to fraction form
    285,091,630.56/393,426,450.06 = 154,711,438.56/x
  3. Step 3: Cross multiply
    285,091,630.56x = 393,426,450.06 × 154,711,438.56
  4. Step 4: Simplify right side
    285,091,630.56x = 60,867,572,056,336,600
  5. Step 5: Solve for x
    x = 60,867,572,056,336,600/285,091,630.56
  6. Step 6: Final answer
    x = 213,501,785.15

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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.