Home / 247,487,620.40-371,514,865.80-145,309,230.80

Finding the Fourth Proportional to 247,487,620.40, 371,514,865.80 and 145,309,230.80

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Solution

The fourth proportional to 247,487,620.40, 371,514,865.80 and 145,309,230.80 is: 218,130,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,487,620.40 : 371,514,865.80 = 145,309,230.80 : x
  2. Step 2: Convert to fraction form
    247,487,620.40/371,514,865.80 = 145,309,230.80/x
  3. Step 3: Cross multiply
    247,487,620.40x = 371,514,865.80 × 145,309,230.80
  4. Step 4: Simplify right side
    247,487,620.40x = 53,984,539,380,163,232
  5. Step 5: Solve for x
    x = 53,984,539,380,163,232/247,487,620.40
  6. Step 6: Final answer
    x = 218,130,261.60

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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.