Home / 1,020,542,989.55-1,408,420,108.58-618,673,676.27

Finding the Fourth Proportional to 1,020,542,989.55, 1,408,420,108.58 and 618,673,676.27

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Solution

The fourth proportional to 1,020,542,989.55, 1,408,420,108.58 and 618,673,676.27 is: 853,812,583.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,542,989.55 : 1,408,420,108.58 = 618,673,676.27 : x
  2. Step 2: Convert to fraction form
    1,020,542,989.55/1,408,420,108.58 = 618,673,676.27/x
  3. Step 3: Cross multiply
    1,020,542,989.55x = 1,408,420,108.58 × 618,673,676.27
  4. Step 4: Simplify right side
    1,020,542,989.55x = 871,352,446,297,645,696
  5. Step 5: Solve for x
    x = 871,352,446,297,645,696/1,020,542,989.55
  6. Step 6: Final answer
    x = 853,812,583.33

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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.