Home / 30,062,169.80-45,092,726.94-20,831,630.12

Finding the Fourth Proportional to 30,062,169.80, 45,092,726.94 and 20,831,630.12

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Solution

The fourth proportional to 30,062,169.80, 45,092,726.94 and 20,831,630.12 is: 31,247,079.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,062,169.80 : 45,092,726.94 = 20,831,630.12 : x
  2. Step 2: Convert to fraction form
    30,062,169.80/45,092,726.94 = 20,831,630.12/x
  3. Step 3: Cross multiply
    30,062,169.80x = 45,092,726.94 × 20,831,630.12
  4. Step 4: Simplify right side
    30,062,169.80x = 939,355,008,716,239.38
  5. Step 5: Solve for x
    x = 939,355,008,716,239.38/30,062,169.80
  6. Step 6: Final answer
    x = 31,247,079.47

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1.5x scale

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.