Home / 161,818,987.20-242,728,480.80-159,131,601.60

Finding the Fourth Proportional to 161,818,987.20, 242,728,480.80 and 159,131,601.60

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Solution

The fourth proportional to 161,818,987.20, 242,728,480.80 and 159,131,601.60 is: 238,697,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,818,987.20 : 242,728,480.80 = 159,131,601.60 : x
  2. Step 2: Convert to fraction form
    161,818,987.20/242,728,480.80 = 159,131,601.60/x
  3. Step 3: Cross multiply
    161,818,987.20x = 242,728,480.80 × 159,131,601.60
  4. Step 4: Simplify right side
    161,818,987.20x = 38,625,771,903,638,848
  5. Step 5: Solve for x
    x = 38,625,771,903,638,848/161,818,987.20
  6. Step 6: Final answer
    x = 238,697,402.40

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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.