Home / 268,620,579.95-403,013,101.81-137,555,654.31

Finding the Fourth Proportional to 268,620,579.95, 403,013,101.81 and 137,555,654.31

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Solution

The fourth proportional to 268,620,579.95, 403,013,101.81 and 137,555,654.31 is: 206,375,590.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,620,579.95 : 403,013,101.81 = 137,555,654.31 : x
  2. Step 2: Convert to fraction form
    268,620,579.95/403,013,101.81 = 137,555,654.31/x
  3. Step 3: Cross multiply
    268,620,579.95x = 403,013,101.81 × 137,555,654.31
  4. Step 4: Simplify right side
    268,620,579.95x = 55,436,730,913,759,440
  5. Step 5: Solve for x
    x = 55,436,730,913,759,440/268,620,579.95
  6. Step 6: Final answer
    x = 206,375,590.89

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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.