Home / 128,465,371.20-192,634,293.60-46,580,980.80

Finding the Fourth Proportional to 128,465,371.20, 192,634,293.60 and 46,580,980.80

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Solution

The fourth proportional to 128,465,371.20, 192,634,293.60 and 46,580,980.80 is: 69,848,350.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,465,371.20 : 192,634,293.60 = 46,580,980.80 : x
  2. Step 2: Convert to fraction form
    128,465,371.20/192,634,293.60 = 46,580,980.80/x
  3. Step 3: Cross multiply
    128,465,371.20x = 192,634,293.60 × 46,580,980.80
  4. Step 4: Simplify right side
    128,465,371.20x = 8,973,094,331,603,162
  5. Step 5: Solve for x
    x = 8,973,094,331,603,162/128,465,371.20
  6. Step 6: Final answer
    x = 69,848,350.94

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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.