Home / 819,220,139.56-1,228,831,391.94-334,545,947.56

Finding the Fourth Proportional to 819,220,139.56, 1,228,831,391.94 and 334,545,947.56

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Solution

The fourth proportional to 819,220,139.56, 1,228,831,391.94 and 334,545,947.56 is: 501,819,404.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,220,139.56 : 1,228,831,391.94 = 334,545,947.56 : x
  2. Step 2: Convert to fraction form
    819,220,139.56/1,228,831,391.94 = 334,545,947.56/x
  3. Step 3: Cross multiply
    819,220,139.56x = 1,228,831,391.94 × 334,545,947.56
  4. Step 4: Simplify right side
    819,220,139.56x = 411,100,562,408,041,088
  5. Step 5: Solve for x
    x = 411,100,562,408,041,088/819,220,139.56
  6. Step 6: Final answer
    x = 501,819,404.28

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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.