Home / 1,309,481,712.72-1,806,815,003.94-752,457,142.98

Finding the Fourth Proportional to 1,309,481,712.72, 1,806,815,003.94 and 752,457,142.98

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Solution

The fourth proportional to 1,309,481,712.72, 1,806,815,003.94 and 752,457,142.98 is: 1,038,235,847.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,481,712.72 : 1,806,815,003.94 = 752,457,142.98 : x
  2. Step 2: Convert to fraction form
    1,309,481,712.72/1,806,815,003.94 = 752,457,142.98/x
  3. Step 3: Cross multiply
    1,309,481,712.72x = 1,806,815,003.94 × 752,457,142.98
  4. Step 4: Simplify right side
    1,309,481,712.72x = 1,359,550,855,758,089,984
  5. Step 5: Solve for x
    x = 1,359,550,855,758,089,984/1,309,481,712.72
  6. Step 6: Final answer
    x = 1,038,235,847.47

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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.