Home / 112,328,489.80-168,492,734.70-99,563,408.20

Finding the Fourth Proportional to 112,328,489.80, 168,492,734.70 and 99,563,408.20

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Solution

The fourth proportional to 112,328,489.80, 168,492,734.70 and 99,563,408.20 is: 149,345,112.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,328,489.80 : 168,492,734.70 = 99,563,408.20 : x
  2. Step 2: Convert to fraction form
    112,328,489.80/168,492,734.70 = 99,563,408.20/x
  3. Step 3: Cross multiply
    112,328,489.80x = 168,492,734.70 × 99,563,408.20
  4. Step 4: Simplify right side
    112,328,489.80x = 16,775,710,923,670,404
  5. Step 5: Solve for x
    x = 16,775,710,923,670,404/112,328,489.80
  6. Step 6: Final answer
    x = 149,345,112.30

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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.