Home / 261,352,679.87-360,655,649.49-142,272,796.50

Finding the Fourth Proportional to 261,352,679.87, 360,655,649.49 and 142,272,796.50

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Solution

The fourth proportional to 261,352,679.87, 360,655,649.49 and 142,272,796.50 is: 196,330,444.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,352,679.87 : 360,655,649.49 = 142,272,796.50 : x
  2. Step 2: Convert to fraction form
    261,352,679.87/360,655,649.49 = 142,272,796.50/x
  3. Step 3: Cross multiply
    261,352,679.87x = 360,655,649.49 × 142,272,796.50
  4. Step 4: Simplify right side
    261,352,679.87x = 51,311,487,826,999,616
  5. Step 5: Solve for x
    x = 51,311,487,826,999,616/261,352,679.87
  6. Step 6: Final answer
    x = 196,330,444.56

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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.