Home / 43,100,172.12-64,648,683.54-12,807,247.80

Finding the Fourth Proportional to 43,100,172.12, 64,648,683.54 and 12,807,247.80

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Solution

The fourth proportional to 43,100,172.12, 64,648,683.54 and 12,807,247.80 is: 19,210,403.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,100,172.12 : 64,648,683.54 = 12,807,247.80 : x
  2. Step 2: Convert to fraction form
    43,100,172.12/64,648,683.54 = 12,807,247.80/x
  3. Step 3: Cross multiply
    43,100,172.12x = 64,648,683.54 × 12,807,247.80
  4. Step 4: Simplify right side
    43,100,172.12x = 827,971,710,040,561.25
  5. Step 5: Solve for x
    x = 827,971,710,040,561.25/43,100,172.12
  6. Step 6: Final answer
    x = 19,210,403.79

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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.