Home / 639,852,113.21-959,814,041.87-179,754,410.66

Finding the Fourth Proportional to 639,852,113.21, 959,814,041.87 and 179,754,410.66

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Solution

The fourth proportional to 639,852,113.21, 959,814,041.87 and 179,754,410.66 is: 269,641,693.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,852,113.21 : 959,814,041.87 = 179,754,410.66 : x
  2. Step 2: Convert to fraction form
    639,852,113.21/959,814,041.87 = 179,754,410.66/x
  3. Step 3: Cross multiply
    639,852,113.21x = 959,814,041.87 × 179,754,410.66
  4. Step 4: Simplify right side
    639,852,113.21x = 172,530,807,435,184,736
  5. Step 5: Solve for x
    x = 172,530,807,435,184,736/639,852,113.21
  6. Step 6: Final answer
    x = 269,641,693.56

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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.