Home / 90,992,419.20-136,488,628.80-50,602,903.20

Finding the Fourth Proportional to 90,992,419.20, 136,488,628.80 and 50,602,903.20

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Solution

The fourth proportional to 90,992,419.20, 136,488,628.80 and 50,602,903.20 is: 75,904,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,992,419.20 : 136,488,628.80 = 50,602,903.20 : x
  2. Step 2: Convert to fraction form
    90,992,419.20/136,488,628.80 = 50,602,903.20/x
  3. Step 3: Cross multiply
    90,992,419.20x = 136,488,628.80 × 50,602,903.20
  4. Step 4: Simplify right side
    90,992,419.20x = 6,906,720,871,067,133
  5. Step 5: Solve for x
    x = 6,906,720,871,067,133/90,992,419.20
  6. Step 6: Final answer
    x = 75,904,354.80

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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.