Home / 18,717,659.70-28,076,489.55-12,671,042.10

Finding the Fourth Proportional to 18,717,659.70, 28,076,489.55 and 12,671,042.10

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Solution

The fourth proportional to 18,717,659.70, 28,076,489.55 and 12,671,042.10 is: 19,006,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717,659.70 : 28,076,489.55 = 12,671,042.10 : x
  2. Step 2: Convert to fraction form
    18,717,659.70/28,076,489.55 = 12,671,042.10/x
  3. Step 3: Cross multiply
    18,717,659.70x = 28,076,489.55 × 12,671,042.10
  4. Step 4: Simplify right side
    18,717,659.70x = 355,758,381,108,260.06
  5. Step 5: Solve for x
    x = 355,758,381,108,260.06/18,717,659.70
  6. Step 6: Final answer
    x = 19,006,563.15

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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.