Home / 326,640,727.20-489,961,090.80-144,887,905.20

Finding the Fourth Proportional to 326,640,727.20, 489,961,090.80 and 144,887,905.20

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Solution

The fourth proportional to 326,640,727.20, 489,961,090.80 and 144,887,905.20 is: 217,331,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,640,727.20 : 489,961,090.80 = 144,887,905.20 : x
  2. Step 2: Convert to fraction form
    326,640,727.20/489,961,090.80 = 144,887,905.20/x
  3. Step 3: Cross multiply
    326,640,727.20x = 489,961,090.80 × 144,887,905.20
  4. Step 4: Simplify right side
    326,640,727.20x = 70,989,436,075,518,992
  5. Step 5: Solve for x
    x = 70,989,436,075,518,992/326,640,727.20
  6. Step 6: Final answer
    x = 217,331,857.80

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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.