Home / 827,143,428.40-1,240,715,142.60-736,745,314.30

Finding the Fourth Proportional to 827,143,428.40, 1,240,715,142.60 and 736,745,314.30

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Solution

The fourth proportional to 827,143,428.40, 1,240,715,142.60 and 736,745,314.30 is: 1,105,117,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,143,428.40 : 1,240,715,142.60 = 736,745,314.30 : x
  2. Step 2: Convert to fraction form
    827,143,428.40/1,240,715,142.60 = 736,745,314.30/x
  3. Step 3: Cross multiply
    827,143,428.40x = 1,240,715,142.60 × 736,745,314.30
  4. Step 4: Simplify right side
    827,143,428.40x = 914,091,067,691,606,144
  5. Step 5: Solve for x
    x = 914,091,067,691,606,144/827,143,428.40
  6. Step 6: Final answer
    x = 1,105,117,971.45

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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.