Home / 272,987,643.60-409,481,465.40-181,154,638.80

Finding the Fourth Proportional to 272,987,643.60, 409,481,465.40 and 181,154,638.80

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Solution

The fourth proportional to 272,987,643.60, 409,481,465.40 and 181,154,638.80 is: 271,731,958.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,987,643.60 : 409,481,465.40 = 181,154,638.80 : x
  2. Step 2: Convert to fraction form
    272,987,643.60/409,481,465.40 = 181,154,638.80/x
  3. Step 3: Cross multiply
    272,987,643.60x = 409,481,465.40 × 181,154,638.80
  4. Step 4: Simplify right side
    272,987,643.60x = 74,179,466,959,831,696
  5. Step 5: Solve for x
    x = 74,179,466,959,831,696/272,987,643.60
  6. Step 6: Final answer
    x = 271,731,958.20

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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.