Home / 125,465,983.40-188,099,442.30-68,732,287.40

Finding the Fourth Proportional to 125,465,983.40, 188,099,442.30 and 68,732,287.40

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Solution

The fourth proportional to 125,465,983.40, 188,099,442.30 and 68,732,287.40 is: 103,043,905.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,465,983.40 : 188,099,442.30 = 68,732,287.40 : x
  2. Step 2: Convert to fraction form
    125,465,983.40/188,099,442.30 = 68,732,287.40/x
  3. Step 3: Cross multiply
    125,465,983.40x = 188,099,442.30 × 68,732,287.40
  4. Step 4: Simplify right side
    125,465,983.40x = 12,928,504,927,943,318
  5. Step 5: Solve for x
    x = 12,928,504,927,943,318/125,465,983.40
  6. Step 6: Final answer
    x = 103,043,905.43

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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.