Home / 56,512,999.20-84,769,498.80-20,162,434.80

Finding the Fourth Proportional to 56,512,999.20, 84,769,498.80 and 20,162,434.80

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Solution

The fourth proportional to 56,512,999.20, 84,769,498.80 and 20,162,434.80 is: 30,243,652.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,512,999.20 : 84,769,498.80 = 20,162,434.80 : x
  2. Step 2: Convert to fraction form
    56,512,999.20/84,769,498.80 = 20,162,434.80/x
  3. Step 3: Cross multiply
    56,512,999.20x = 84,769,498.80 × 20,162,434.80
  4. Step 4: Simplify right side
    56,512,999.20x = 1,709,159,492,583,678.25
  5. Step 5: Solve for x
    x = 1,709,159,492,583,678.25/56,512,999.20
  6. Step 6: Final answer
    x = 30,243,652.20

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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.