Home / 80,212,298,056.80-120,318,447,085.20-43,019,931,112.80

Finding the Fourth Proportional to 80,212,298,056.80, 120,318,447,085.20 and 43,019,931,112.80

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Solution

The fourth proportional to 80,212,298,056.80, 120,318,447,085.20 and 43,019,931,112.80 is: 64,529,896,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,212,298,056.80 : 120,318,447,085.20 = 43,019,931,112.80 : x
  2. Step 2: Convert to fraction form
    80,212,298,056.80/120,318,447,085.20 = 43,019,931,112.80/x
  3. Step 3: Cross multiply
    80,212,298,056.80x = 120,318,447,085.20 × 43,019,931,112.80
  4. Step 4: Simplify right side
    80,212,298,056.80x = 5,176,091,305,204,376,403,968
  5. Step 5: Solve for x
    x = 5,176,091,305,204,376,403,968/80,212,298,056.80
  6. Step 6: Final answer
    x = 64,529,896,669.20

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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.