Home / 138,965,142.40-208,346,936.64-93,413,956.48

Finding the Fourth Proportional to 138,965,142.40, 208,346,936.64 and 93,413,956.48

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Solution

The fourth proportional to 138,965,142.40, 208,346,936.64 and 93,413,956.48 is: 140,053,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,965,142.40 : 208,346,936.64 = 93,413,956.48 : x
  2. Step 2: Convert to fraction form
    138,965,142.40/208,346,936.64 = 93,413,956.48/x
  3. Step 3: Cross multiply
    138,965,142.40x = 208,346,936.64 × 93,413,956.48
  4. Step 4: Simplify right side
    138,965,142.40x = 19,462,511,672,030,276
  5. Step 5: Solve for x
    x = 19,462,511,672,030,276/138,965,142.40
  6. Step 6: Final answer
    x = 140,053,191.30

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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.