Home / 285,091,627.56-393,426,445.92-154,711,435.56

Finding the Fourth Proportional to 285,091,627.56, 393,426,445.92 and 154,711,435.56

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Solution

The fourth proportional to 285,091,627.56, 393,426,445.92 and 154,711,435.56 is: 213,501,781.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,091,627.56 : 393,426,445.92 = 154,711,435.56 : x
  2. Step 2: Convert to fraction form
    285,091,627.56/393,426,445.92 = 154,711,435.56/x
  3. Step 3: Cross multiply
    285,091,627.56x = 393,426,445.92 × 154,711,435.56
  4. Step 4: Simplify right side
    285,091,627.56x = 60,867,570,235,551,912
  5. Step 5: Solve for x
    x = 60,867,570,235,551,912/285,091,627.56
  6. Step 6: Final answer
    x = 213,501,781.01

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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.