Home / 99,563,276.80-149,344,915.20-79,407,884.80

Finding the Fourth Proportional to 99,563,276.80, 149,344,915.20 and 79,407,884.80

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Solution

The fourth proportional to 99,563,276.80, 149,344,915.20 and 79,407,884.80 is: 119,111,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,563,276.80 : 149,344,915.20 = 79,407,884.80 : x
  2. Step 2: Convert to fraction form
    99,563,276.80/149,344,915.20 = 79,407,884.80/x
  3. Step 3: Cross multiply
    99,563,276.80x = 149,344,915.20 × 79,407,884.80
  4. Step 4: Simplify right side
    99,563,276.80x = 11,859,163,821,667,368
  5. Step 5: Solve for x
    x = 11,859,163,821,667,368/99,563,276.80
  6. Step 6: Final answer
    x = 119,111,827.20

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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.