Home / 146,546,788.40-219,820,940.86-85,919,999.12

Finding the Fourth Proportional to 146,546,788.40, 219,820,940.86 and 85,919,999.12

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Solution

The fourth proportional to 146,546,788.40, 219,820,940.86 and 85,919,999.12 is: 128,880,443.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,546,788.40 : 219,820,940.86 = 85,919,999.12 : x
  2. Step 2: Convert to fraction form
    146,546,788.40/219,820,940.86 = 85,919,999.12/x
  3. Step 3: Cross multiply
    146,546,788.40x = 219,820,940.86 × 85,919,999.12
  4. Step 4: Simplify right side
    146,546,788.40x = 18,887,015,045,248,776
  5. Step 5: Solve for x
    x = 18,887,015,045,248,776/146,546,788.40
  6. Step 6: Final answer
    x = 128,880,443.25

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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.