Home / 128,329,933.60-192,494,900.40-63,643,722.40

Finding the Fourth Proportional to 128,329,933.60, 192,494,900.40 and 63,643,722.40

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Solution

The fourth proportional to 128,329,933.60, 192,494,900.40 and 63,643,722.40 is: 95,465,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,329,933.60 : 192,494,900.40 = 63,643,722.40 : x
  2. Step 2: Convert to fraction form
    128,329,933.60/192,494,900.40 = 63,643,722.40/x
  3. Step 3: Cross multiply
    128,329,933.60x = 192,494,900.40 × 63,643,722.40
  4. Step 4: Simplify right side
    128,329,933.60x = 12,251,092,004,473,250
  5. Step 5: Solve for x
    x = 12,251,092,004,473,250/128,329,933.60
  6. Step 6: Final answer
    x = 95,465,583.60

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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.