Home / 20,900,156.02-28,843,638.34-11,608,788.58

Finding the Fourth Proportional to 20,900,156.02, 28,843,638.34 and 11,608,788.58

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Solution

The fourth proportional to 20,900,156.02, 28,843,638.34 and 11,608,788.58 is: 16,020,918.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,900,156.02 : 28,843,638.34 = 11,608,788.58 : x
  2. Step 2: Convert to fraction form
    20,900,156.02/28,843,638.34 = 11,608,788.58/x
  3. Step 3: Cross multiply
    20,900,156.02x = 28,843,638.34 × 11,608,788.58
  4. Step 4: Simplify right side
    20,900,156.02x = 334,839,699,367,042.19
  5. Step 5: Solve for x
    x = 334,839,699,367,042.19/20,900,156.02
  6. Step 6: Final answer
    x = 16,020,918.65

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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.