Home / 21,326,590.98-29,432,274.59-12,159,464.58

Finding the Fourth Proportional to 21,326,590.98, 29,432,274.59 and 12,159,464.58

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Solution

The fourth proportional to 21,326,590.98, 29,432,274.59 and 12,159,464.58 is: 16,780,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326,590.98 : 29,432,274.59 = 12,159,464.58 : x
  2. Step 2: Convert to fraction form
    21,326,590.98/29,432,274.59 = 12,159,464.58/x
  3. Step 3: Cross multiply
    21,326,590.98x = 29,432,274.59 × 12,159,464.58
  4. Step 4: Simplify right side
    21,326,590.98x = 357,880,700,385,939
  5. Step 5: Solve for x
    x = 357,880,700,385,939/21,326,590.98
  6. Step 6: Final answer
    x = 16,780,961.42

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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.