Home / 90,487,542.21-124,869,131.28-51,328,478.22

Finding the Fourth Proportional to 90,487,542.21, 124,869,131.28 and 51,328,478.22

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Solution

The fourth proportional to 90,487,542.21, 124,869,131.28 and 51,328,478.22 is: 70,831,214.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,487,542.21 : 124,869,131.28 = 51,328,478.22 : x
  2. Step 2: Convert to fraction form
    90,487,542.21/124,869,131.28 = 51,328,478.22/x
  3. Step 3: Cross multiply
    90,487,542.21x = 124,869,131.28 × 51,328,478.22
  4. Step 4: Simplify right side
    90,487,542.21x = 6,409,342,485,255,801
  5. Step 5: Solve for x
    x = 6,409,342,485,255,801/90,487,542.21
  6. Step 6: Final answer
    x = 70,831,214.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.