Home / 19,879,076.90-29,818,615.35-8,520,673.70

Finding the Fourth Proportional to 19,879,076.90, 29,818,615.35 and 8,520,673.70

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Solution

The fourth proportional to 19,879,076.90, 29,818,615.35 and 8,520,673.70 is: 12,781,010.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879,076.90 : 29,818,615.35 = 8,520,673.70 : x
  2. Step 2: Convert to fraction form
    19,879,076.90/29,818,615.35 = 8,520,673.70/x
  3. Step 3: Cross multiply
    19,879,076.90x = 29,818,615.35 × 8,520,673.70
  4. Step 4: Simplify right side
    19,879,076.90x = 254,074,691,583,161.28
  5. Step 5: Solve for x
    x = 254,074,691,583,161.28/19,879,076.90
  6. Step 6: Final answer
    x = 12,781,010.55

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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.