Home / 86,431,921.78-119,200,671.95-61,264,250.76

Finding the Fourth Proportional to 86,431,921.78, 119,200,671.95 and 61,264,250.76

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Solution

The fourth proportional to 86,431,921.78, 119,200,671.95 and 61,264,250.76 is: 84,491,235.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,431,921.78 : 119,200,671.95 = 61,264,250.76 : x
  2. Step 2: Convert to fraction form
    86,431,921.78/119,200,671.95 = 61,264,250.76/x
  3. Step 3: Cross multiply
    86,431,921.78x = 119,200,671.95 × 61,264,250.76
  4. Step 4: Simplify right side
    86,431,921.78x = 7,302,739,857,105,298
  5. Step 5: Solve for x
    x = 7,302,739,857,105,298/86,431,921.78
  6. Step 6: Final answer
    x = 84,491,235.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.