Home / 19,879,076.40-29,818,614.60-8,520,673.20

Finding the Fourth Proportional to 19,879,076.40, 29,818,614.60 and 8,520,673.20

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Solution

The fourth proportional to 19,879,076.40, 29,818,614.60 and 8,520,673.20 is: 12,781,009.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879,076.40 : 29,818,614.60 = 8,520,673.20 : x
  2. Step 2: Convert to fraction form
    19,879,076.40/29,818,614.60 = 8,520,673.20/x
  3. Step 3: Cross multiply
    19,879,076.40x = 29,818,614.60 × 8,520,673.20
  4. Step 4: Simplify right side
    19,879,076.40x = 254,074,670,283,348.72
  5. Step 5: Solve for x
    x = 254,074,670,283,348.72/19,879,076.40
  6. Step 6: Final answer
    x = 12,781,009.80

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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.