Home / 12,310,385.44-16,990,441.48-7,156,736.40

Finding the Fourth Proportional to 12,310,385.44, 16,990,441.48 and 7,156,736.40

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Solution

The fourth proportional to 12,310,385.44, 16,990,441.48 and 7,156,736.40 is: 9,877,522.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310,385.44 : 16,990,441.48 = 7,156,736.40 : x
  2. Step 2: Convert to fraction form
    12,310,385.44/16,990,441.48 = 7,156,736.40/x
  3. Step 3: Cross multiply
    12,310,385.44x = 16,990,441.48 × 7,156,736.40
  4. Step 4: Simplify right side
    12,310,385.44x = 121,596,110,991,985.88
  5. Step 5: Solve for x
    x = 121,596,110,991,985.88/12,310,385.44
  6. Step 6: Final answer
    x = 9,877,522.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.