Home / 247,451,539.83-371,037,400.30-81,410,112.77

Finding the Fourth Proportional to 247,451,539.83, 371,037,400.30 and 81,410,112.77

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Solution

The fourth proportional to 247,451,539.83, 371,037,400.30 and 81,410,112.77 is: 122,069,139.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,451,539.83 : 371,037,400.30 = 81,410,112.77 : x
  2. Step 2: Convert to fraction form
    247,451,539.83/371,037,400.30 = 81,410,112.77/x
  3. Step 3: Cross multiply
    247,451,539.83x = 371,037,400.30 × 81,410,112.77
  4. Step 4: Simplify right side
    247,451,539.83x = 30,206,196,600,187,580
  5. Step 5: Solve for x
    x = 30,206,196,600,187,580/247,451,539.83
  6. Step 6: Final answer
    x = 122,069,139.76

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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.