Home / 10,920,423.60-16,352,641.80-8,065,076.40

Finding the Fourth Proportional to 10,920,423.60, 16,352,641.80 and 8,065,076.40

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Solution

The fourth proportional to 10,920,423.60, 16,352,641.80 and 8,065,076.40 is: 12,076,940.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920,423.60 : 16,352,641.80 = 8,065,076.40 : x
  2. Step 2: Convert to fraction form
    10,920,423.60/16,352,641.80 = 8,065,076.40/x
  3. Step 3: Cross multiply
    10,920,423.60x = 16,352,641.80 × 8,065,076.40
  4. Step 4: Simplify right side
    10,920,423.60x = 131,885,305,458,833.53
  5. Step 5: Solve for x
    x = 131,885,305,458,833.53/10,920,423.60
  6. Step 6: Final answer
    x = 12,076,940.45

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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.