Home / 103,680,028.80-155,520,043.20-58,243,305.60

Finding the Fourth Proportional to 103,680,028.80, 155,520,043.20 and 58,243,305.60

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Solution

The fourth proportional to 103,680,028.80, 155,520,043.20 and 58,243,305.60 is: 87,364,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680,028.80 : 155,520,043.20 = 58,243,305.60 : x
  2. Step 2: Convert to fraction form
    103,680,028.80/155,520,043.20 = 58,243,305.60/x
  3. Step 3: Cross multiply
    103,680,028.80x = 155,520,043.20 × 58,243,305.60
  4. Step 4: Simplify right side
    103,680,028.80x = 9,058,001,403,022,802
  5. Step 5: Solve for x
    x = 9,058,001,403,022,802/103,680,028.80
  6. Step 6: Final answer
    x = 87,364,958.40

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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.