Home / 21,851,430.23-30,154,979.55-12,061,880.60

Finding the Fourth Proportional to 21,851,430.23, 30,154,979.55 and 12,061,880.60

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Solution

The fourth proportional to 21,851,430.23, 30,154,979.55 and 12,061,880.60 is: 16,645,398.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851,430.23 : 30,154,979.55 = 12,061,880.60 : x
  2. Step 2: Convert to fraction form
    21,851,430.23/30,154,979.55 = 12,061,880.60/x
  3. Step 3: Cross multiply
    21,851,430.23x = 30,154,979.55 × 12,061,880.60
  4. Step 4: Simplify right side
    21,851,430.23x = 363,725,762,676,766.88
  5. Step 5: Solve for x
    x = 363,725,762,676,766.88/21,851,430.23
  6. Step 6: Final answer
    x = 16,645,398.44

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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.