Home / 125,465,984.40-188,099,443.80-68,732,288.40

Finding the Fourth Proportional to 125,465,984.40, 188,099,443.80 and 68,732,288.40

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Solution

The fourth proportional to 125,465,984.40, 188,099,443.80 and 68,732,288.40 is: 103,043,906.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,465,984.40 : 188,099,443.80 = 68,732,288.40 : x
  2. Step 2: Convert to fraction form
    125,465,984.40/188,099,443.80 = 68,732,288.40/x
  3. Step 3: Cross multiply
    125,465,984.40x = 188,099,443.80 × 68,732,288.40
  4. Step 4: Simplify right side
    125,465,984.40x = 12,928,505,219,141,194
  5. Step 5: Solve for x
    x = 12,928,505,219,141,194/125,465,984.40
  6. Step 6: Final answer
    x = 103,043,906.93

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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.