Home / 21,312,034.20-31,968,051.30-12,214,114.20

Finding the Fourth Proportional to 21,312,034.20, 31,968,051.30 and 12,214,114.20

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Solution

The fourth proportional to 21,312,034.20, 31,968,051.30 and 12,214,114.20 is: 18,321,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,034.20 : 31,968,051.30 = 12,214,114.20 : x
  2. Step 2: Convert to fraction form
    21,312,034.20/31,968,051.30 = 12,214,114.20/x
  3. Step 3: Cross multiply
    21,312,034.20x = 31,968,051.30 × 12,214,114.20
  4. Step 4: Simplify right side
    21,312,034.20x = 390,461,429,329,658.44
  5. Step 5: Solve for x
    x = 390,461,429,329,658.44/21,312,034.20
  6. Step 6: Final answer
    x = 18,321,171.30

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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.