Home / 102,939,921.20-154,409,881.80-34,781,628.80

Finding the Fourth Proportional to 102,939,921.20, 154,409,881.80 and 34,781,628.80

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Solution

The fourth proportional to 102,939,921.20, 154,409,881.80 and 34,781,628.80 is: 52,172,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,939,921.20 : 154,409,881.80 = 34,781,628.80 : x
  2. Step 2: Convert to fraction form
    102,939,921.20/154,409,881.80 = 34,781,628.80/x
  3. Step 3: Cross multiply
    102,939,921.20x = 154,409,881.80 × 34,781,628.80
  4. Step 4: Simplify right side
    102,939,921.20x = 5,370,627,191,819,476
  5. Step 5: Solve for x
    x = 5,370,627,191,819,476/102,939,921.20
  6. Step 6: Final answer
    x = 52,172,443.20

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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.