Home / 86,823,977.30-130,123,991.55-66,528,617.30

Finding the Fourth Proportional to 86,823,977.30, 130,123,991.55 and 66,528,617.30

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Solution

The fourth proportional to 86,823,977.30, 130,123,991.55 and 66,528,617.30 is: 99,707,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,823,977.30 : 130,123,991.55 = 66,528,617.30 : x
  2. Step 2: Convert to fraction form
    86,823,977.30/130,123,991.55 = 66,528,617.30/x
  3. Step 3: Cross multiply
    86,823,977.30x = 130,123,991.55 × 66,528,617.30
  4. Step 4: Simplify right side
    86,823,977.30x = 8,656,969,235,378,383
  5. Step 5: Solve for x
    x = 8,656,969,235,378,383/86,823,977.30
  6. Step 6: Final answer
    x = 99,707,125.90

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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.