Home / 18,717,999.90-28,076,999.85-17,773,215.90

Finding the Fourth Proportional to 18,717,999.90, 28,076,999.85 and 17,773,215.90

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Solution

The fourth proportional to 18,717,999.90, 28,076,999.85 and 17,773,215.90 is: 26,659,823.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717,999.90 : 28,076,999.85 = 17,773,215.90 : x
  2. Step 2: Convert to fraction form
    18,717,999.90/28,076,999.85 = 17,773,215.90/x
  3. Step 3: Cross multiply
    18,717,999.90x = 28,076,999.85 × 17,773,215.90
  4. Step 4: Simplify right side
    18,717,999.90x = 499,018,580,158,317.62
  5. Step 5: Solve for x
    x = 499,018,580,158,317.62/18,717,999.90
  6. Step 6: Final answer
    x = 26,659,823.85

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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.