Home / 478,667,727.60-718,355,485.80-191,659,369.20

Finding the Fourth Proportional to 478,667,727.60, 718,355,485.80 and 191,659,369.20

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Solution

The fourth proportional to 478,667,727.60, 718,355,485.80 and 191,659,369.20 is: 287,630,753.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,667,727.60 : 718,355,485.80 = 191,659,369.20 : x
  2. Step 2: Convert to fraction form
    478,667,727.60/718,355,485.80 = 191,659,369.20/x
  3. Step 3: Cross multiply
    478,667,727.60x = 718,355,485.80 × 191,659,369.20
  4. Step 4: Simplify right side
    478,667,727.60x = 137,679,559,269,787,536
  5. Step 5: Solve for x
    x = 137,679,559,269,787,536/478,667,727.60
  6. Step 6: Final answer
    x = 287,630,753.72

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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.