Home / 28,076,732.20-42,081,920.70-11,902,652.20

Finding the Fourth Proportional to 28,076,732.20, 42,081,920.70 and 11,902,652.20

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Solution

The fourth proportional to 28,076,732.20, 42,081,920.70 and 11,902,652.20 is: 17,839,913.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076,732.20 : 42,081,920.70 = 11,902,652.20 : x
  2. Step 2: Convert to fraction form
    28,076,732.20/42,081,920.70 = 11,902,652.20/x
  3. Step 3: Cross multiply
    28,076,732.20x = 42,081,920.70 × 11,902,652.20
  4. Step 4: Simplify right side
    28,076,732.20x = 500,886,466,000,080.56
  5. Step 5: Solve for x
    x = 500,886,466,000,080.56/28,076,732.20
  6. Step 6: Final answer
    x = 17,839,913.22

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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.