Home / 21,386,728.60-32,076,156.30-13,285,205.80

Finding the Fourth Proportional to 21,386,728.60, 32,076,156.30 and 13,285,205.80

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Solution

The fourth proportional to 21,386,728.60, 32,076,156.30 and 13,285,205.80 is: 19,925,363.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386,728.60 : 32,076,156.30 = 13,285,205.80 : x
  2. Step 2: Convert to fraction form
    21,386,728.60/32,076,156.30 = 13,285,205.80/x
  3. Step 3: Cross multiply
    21,386,728.60x = 32,076,156.30 × 13,285,205.80
  4. Step 4: Simplify right side
    21,386,728.60x = 426,138,337,718,466.56
  5. Step 5: Solve for x
    x = 426,138,337,718,466.56/21,386,728.60
  6. Step 6: Final answer
    x = 19,925,363.33

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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.