Home / 20,684,368.08-30,950,968.56-12,168,714.96

Finding the Fourth Proportional to 20,684,368.08, 30,950,968.56 and 12,168,714.96

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Solution

The fourth proportional to 20,684,368.08, 30,950,968.56 and 12,168,714.96 is: 18,208,606.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,368.08 : 30,950,968.56 = 12,168,714.96 : x
  2. Step 2: Convert to fraction form
    20,684,368.08/30,950,968.56 = 12,168,714.96/x
  3. Step 3: Cross multiply
    20,684,368.08x = 30,950,968.56 × 12,168,714.96
  4. Step 4: Simplify right side
    20,684,368.08x = 376,633,514,142,561.69
  5. Step 5: Solve for x
    x = 376,633,514,142,561.69/20,684,368.08
  6. Step 6: Final answer
    x = 18,208,606.26

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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.