Home / 210,015,455.80-314,928,705.30-80,580,047.80

Finding the Fourth Proportional to 210,015,455.80, 314,928,705.30 and 80,580,047.80

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Solution

The fourth proportional to 210,015,455.80, 314,928,705.30 and 80,580,047.80 is: 120,833,821.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,015,455.80 : 314,928,705.30 = 80,580,047.80 : x
  2. Step 2: Convert to fraction form
    210,015,455.80/314,928,705.30 = 80,580,047.80/x
  3. Step 3: Cross multiply
    210,015,455.80x = 314,928,705.30 × 80,580,047.80
  4. Step 4: Simplify right side
    210,015,455.80x = 25,376,970,126,666,112
  5. Step 5: Solve for x
    x = 25,376,970,126,666,112/210,015,455.80
  6. Step 6: Final answer
    x = 120,833,821.63

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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.