Home / 128,650,283.25-198,786,017.63

Finding the Third Proportional to 128,650,283.25 and 198,786,017.63

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Solution

The third proportional to 128,650,283.25 and 198,786,017.63 is: 307,157,355.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,650,283.25 : 198,786,017.63 = 198,786,017.63 : x
  2. Step 2: Convert to fraction form
    128,650,283.25/198,786,017.63 = 198,786,017.63/x
  3. Step 3: Cross multiply
    128,650,283.25x = 198,786,017.63 × 198,786,017.63
  4. Step 4: Simplify right side
    128,650,283.25x = 39,515,880,803,206,808
  5. Step 5: Solve for x
    x = 39,515,880,803,206,808/128,650,283.25
  6. Step 6: Final answer
    x = 307,157,355.62

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.