Home / 272,968,247.40-409,452,371.10-78,885,994.20

Finding the Fourth Proportional to 272,968,247.40, 409,452,371.10 and 78,885,994.20

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Solution

The fourth proportional to 272,968,247.40, 409,452,371.10 and 78,885,994.20 is: 118,328,991.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,968,247.40 : 409,452,371.10 = 78,885,994.20 : x
  2. Step 2: Convert to fraction form
    272,968,247.40/409,452,371.10 = 78,885,994.20/x
  3. Step 3: Cross multiply
    272,968,247.40x = 409,452,371.10 × 78,885,994.20
  4. Step 4: Simplify right side
    272,968,247.40x = 32,300,057,371,770,852
  5. Step 5: Solve for x
    x = 32,300,057,371,770,852/272,968,247.40
  6. Step 6: Final answer
    x = 118,328,991.30

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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.