Home / 80,212,297,964.30-120,318,446,946.45-43,019,931,020.30

Finding the Fourth Proportional to 80,212,297,964.30, 120,318,446,946.45 and 43,019,931,020.30

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Solution

The fourth proportional to 80,212,297,964.30, 120,318,446,946.45 and 43,019,931,020.30 is: 64,529,896,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,212,297,964.30 : 120,318,446,946.45 = 43,019,931,020.30 : x
  2. Step 2: Convert to fraction form
    80,212,297,964.30/120,318,446,946.45 = 43,019,931,020.30/x
  3. Step 3: Cross multiply
    80,212,297,964.30x = 120,318,446,946.45 × 43,019,931,020.30
  4. Step 4: Simplify right side
    80,212,297,964.30x = 5,176,091,288,105,903,980,544
  5. Step 5: Solve for x
    x = 5,176,091,288,105,903,980,544/80,212,297,964.30
  6. Step 6: Final answer
    x = 64,529,896,530.45

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Double scale
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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.