Home / 664,851,027.30-997,276,540.95-389,352,012.90

Finding the Fourth Proportional to 664,851,027.30, 997,276,540.95 and 389,352,012.90

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Solution

The fourth proportional to 664,851,027.30, 997,276,540.95 and 389,352,012.90 is: 584,028,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,851,027.30 : 997,276,540.95 = 389,352,012.90 : x
  2. Step 2: Convert to fraction form
    664,851,027.30/997,276,540.95 = 389,352,012.90/x
  3. Step 3: Cross multiply
    664,851,027.30x = 997,276,540.95 × 389,352,012.90
  4. Step 4: Simplify right side
    664,851,027.30x = 388,291,628,636,831,744
  5. Step 5: Solve for x
    x = 388,291,628,636,831,744/664,851,027.30
  6. Step 6: Final answer
    x = 584,028,019.35

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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.