Home / 133,088,011.20-199,632,016.80-81,355,838.40

Finding the Fourth Proportional to 133,088,011.20, 199,632,016.80 and 81,355,838.40

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Solution

The fourth proportional to 133,088,011.20, 199,632,016.80 and 81,355,838.40 is: 122,033,757.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,088,011.20 : 199,632,016.80 = 81,355,838.40 : x
  2. Step 2: Convert to fraction form
    133,088,011.20/199,632,016.80 = 81,355,838.40/x
  3. Step 3: Cross multiply
    133,088,011.20x = 199,632,016.80 × 81,355,838.40
  4. Step 4: Simplify right side
    133,088,011.20x = 16,241,230,098,246,888
  5. Step 5: Solve for x
    x = 16,241,230,098,246,888/133,088,011.20
  6. Step 6: Final answer
    x = 122,033,757.60

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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.