Home / 389,817,074,928.52-584,312,924,202.18-131,121,557,226.64

Finding the Fourth Proportional to 389,817,074,928.52, 584,312,924,202.18 and 131,121,557,226.64

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Solution

The fourth proportional to 389,817,074,928.52, 584,312,924,202.18 and 131,121,557,226.64 is: 196,543,521,196.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,817,074,928.52 : 584,312,924,202.18 = 131,121,557,226.64 : x
  2. Step 2: Convert to fraction form
    389,817,074,928.52/584,312,924,202.18 = 131,121,557,226.64/x
  3. Step 3: Cross multiply
    389,817,074,928.52x = 584,312,924,202.18 × 131,121,557,226.64
  4. Step 4: Simplify right side
    389,817,074,928.52x = 76,616,020,529,041,511,546,880
  5. Step 5: Solve for x
    x = 76,616,020,529,041,511,546,880/389,817,074,928.52
  6. Step 6: Final answer
    x = 196,543,521,196.68

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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.