Home / 210,015,642.80-314,928,985.80-80,580,234.80

Finding the Fourth Proportional to 210,015,642.80, 314,928,985.80 and 80,580,234.80

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Solution

The fourth proportional to 210,015,642.80, 314,928,985.80 and 80,580,234.80 is: 120,834,102.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,015,642.80 : 314,928,985.80 = 80,580,234.80 : x
  2. Step 2: Convert to fraction form
    210,015,642.80/314,928,985.80 = 80,580,234.80/x
  3. Step 3: Cross multiply
    210,015,642.80x = 314,928,985.80 × 80,580,234.80
  4. Step 4: Simplify right side
    210,015,642.80x = 25,377,051,621,089,864
  5. Step 5: Solve for x
    x = 25,377,051,621,089,864/210,015,642.80
  6. Step 6: Final answer
    x = 120,834,102.08

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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.