Home / 171,783,019.20-257,674,528.80-89,870,246.40

Finding the Fourth Proportional to 171,783,019.20, 257,674,528.80 and 89,870,246.40

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Solution

The fourth proportional to 171,783,019.20, 257,674,528.80 and 89,870,246.40 is: 134,805,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,783,019.20 : 257,674,528.80 = 89,870,246.40 : x
  2. Step 2: Convert to fraction form
    171,783,019.20/257,674,528.80 = 89,870,246.40/x
  3. Step 3: Cross multiply
    171,783,019.20x = 257,674,528.80 × 89,870,246.40
  4. Step 4: Simplify right side
    171,783,019.20x = 23,157,273,394,259,900
  5. Step 5: Solve for x
    x = 23,157,273,394,259,900/171,783,019.20
  6. Step 6: Final answer
    x = 134,805,369.60

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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.