Home / 1,685,712,693.78-2,529,440,905.31-1,223,187,449.53

Finding the Fourth Proportional to 1,685,712,693.78, 2,529,440,905.31 and 1,223,187,449.53

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Solution

The fourth proportional to 1,685,712,693.78, 2,529,440,905.31 and 1,223,187,449.53 is: 1,835,413,817.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,712,693.78 : 2,529,440,905.31 = 1,223,187,449.53 : x
  2. Step 2: Convert to fraction form
    1,685,712,693.78/2,529,440,905.31 = 1,223,187,449.53/x
  3. Step 3: Cross multiply
    1,685,712,693.78x = 2,529,440,905.31 × 1,223,187,449.53
  4. Step 4: Simplify right side
    1,685,712,693.78x = 3,093,980,369,702,992,896
  5. Step 5: Solve for x
    x = 3,093,980,369,702,992,896/1,685,712,693.78
  6. Step 6: Final answer
    x = 1,835,413,817.03

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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.