Home / 136,705,644.78-188,655,562.53-74,824,654.74

Finding the Fourth Proportional to 136,705,644.78, 188,655,562.53 and 74,824,654.74

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Solution

The fourth proportional to 136,705,644.78, 188,655,562.53 and 74,824,654.74 is: 103,258,993.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,705,644.78 : 188,655,562.53 = 74,824,654.74 : x
  2. Step 2: Convert to fraction form
    136,705,644.78/188,655,562.53 = 74,824,654.74/x
  3. Step 3: Cross multiply
    136,705,644.78x = 188,655,562.53 × 74,824,654.74
  4. Step 4: Simplify right side
    136,705,644.78x = 14,116,087,331,087,730
  5. Step 5: Solve for x
    x = 14,116,087,331,087,730/136,705,644.78
  6. Step 6: Final answer
    x = 103,258,993.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.