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Finding the Fourth Proportional to 1,210,809,469.02, 1,670,917,003.29 and 653,892,462.42

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Solution

The fourth proportional to 1,210,809,469.02, 1,670,917,003.29 and 653,892,462.42 is: 902,371,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,809,469.02 : 1,670,917,003.29 = 653,892,462.42 : x
  2. Step 2: Convert to fraction form
    1,210,809,469.02/1,670,917,003.29 = 653,892,462.42/x
  3. Step 3: Cross multiply
    1,210,809,469.02x = 1,670,917,003.29 × 653,892,462.42
  4. Step 4: Simplify right side
    1,210,809,469.02x = 1,092,600,033,780,745,216
  5. Step 5: Solve for x
    x = 1,092,600,033,780,745,216/1,210,809,469.02
  6. Step 6: Final answer
    x = 902,371,563.60

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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.