Home / 21,070,387.54-29,076,915.05-12,366,878.62

Finding the Fourth Proportional to 21,070,387.54, 29,076,915.05 and 12,366,878.62

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Solution

The fourth proportional to 21,070,387.54, 29,076,915.05 and 12,366,878.62 is: 17,066,163.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,070,387.54 : 29,076,915.05 = 12,366,878.62 : x
  2. Step 2: Convert to fraction form
    21,070,387.54/29,076,915.05 = 12,366,878.62/x
  3. Step 3: Cross multiply
    21,070,387.54x = 29,076,915.05 × 12,366,878.62
  4. Step 4: Simplify right side
    21,070,387.54x = 359,590,678,860,182.31
  5. Step 5: Solve for x
    x = 359,590,678,860,182.31/21,070,387.54
  6. Step 6: Final answer
    x = 17,066,163.51

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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.