Home / 74,668,243.20-112,002,364.80-67,015,492.80

Finding the Fourth Proportional to 74,668,243.20, 112,002,364.80 and 67,015,492.80

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Solution

The fourth proportional to 74,668,243.20, 112,002,364.80 and 67,015,492.80 is: 100,523,239.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,668,243.20 : 112,002,364.80 = 67,015,492.80 : x
  2. Step 2: Convert to fraction form
    74,668,243.20/112,002,364.80 = 67,015,492.80/x
  3. Step 3: Cross multiply
    74,668,243.20x = 112,002,364.80 × 67,015,492.80
  4. Step 4: Simplify right side
    74,668,243.20x = 7,505,893,671,837,373
  5. Step 5: Solve for x
    x = 7,505,893,671,837,373/74,668,243.20
  6. Step 6: Final answer
    x = 100,523,239.20

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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.