Home / 85,590,656,861.31-128,364,769,585.88-28,929,260,190.37

Finding the Fourth Proportional to 85,590,656,861.31, 128,364,769,585.88 and 28,929,260,190.37

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Solution

The fourth proportional to 85,590,656,861.31, 128,364,769,585.88 and 28,929,260,190.37 is: 43,386,719,471.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,590,656,861.31 : 128,364,769,585.88 = 28,929,260,190.37 : x
  2. Step 2: Convert to fraction form
    85,590,656,861.31/128,364,769,585.88 = 28,929,260,190.37/x
  3. Step 3: Cross multiply
    85,590,656,861.31x = 128,364,769,585.88 × 28,929,260,190.37
  4. Step 4: Simplify right side
    85,590,656,861.31x = 3,713,497,818,626,816,212,992
  5. Step 5: Solve for x
    x = 3,713,497,818,626,816,212,992/85,590,656,861.31
  6. Step 6: Final answer
    x = 43,386,719,471.54

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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.