Home / 21,478,930.88-32,175,880.81-18,786,296.48

Finding the Fourth Proportional to 21,478,930.88, 32,175,880.81 and 18,786,296.48

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Solution

The fourth proportional to 21,478,930.88, 32,175,880.81 and 18,786,296.48 is: 28,142,259.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,478,930.88 : 32,175,880.81 = 18,786,296.48 : x
  2. Step 2: Convert to fraction form
    21,478,930.88/32,175,880.81 = 18,786,296.48/x
  3. Step 3: Cross multiply
    21,478,930.88x = 32,175,880.81 × 18,786,296.48
  4. Step 4: Simplify right side
    21,478,930.88x = 604,465,636,193,957.50
  5. Step 5: Solve for x
    x = 604,465,636,193,957.50/21,478,930.88
  6. Step 6: Final answer
    x = 28,142,259.02

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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.