Home / 121,453,581.40-182,180,372.10-109,738,259.80

Finding the Fourth Proportional to 121,453,581.40, 182,180,372.10 and 109,738,259.80

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Solution

The fourth proportional to 121,453,581.40, 182,180,372.10 and 109,738,259.80 is: 164,607,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,453,581.40 : 182,180,372.10 = 109,738,259.80 : x
  2. Step 2: Convert to fraction form
    121,453,581.40/182,180,372.10 = 109,738,259.80/x
  3. Step 3: Cross multiply
    121,453,581.40x = 182,180,372.10 × 109,738,259.80
  4. Step 4: Simplify right side
    121,453,581.40x = 19,992,157,003,970,472
  5. Step 5: Solve for x
    x = 19,992,157,003,970,472/121,453,581.40
  6. Step 6: Final answer
    x = 164,607,389.70

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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.