Home / 239,032,731.78-329,865,914.43-138,580,748.10

Finding the Fourth Proportional to 239,032,731.78, 329,865,914.43 and 138,580,748.10

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Solution

The fourth proportional to 239,032,731.78, 329,865,914.43 and 138,580,748.10 is: 191,241,864.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,032,731.78 : 329,865,914.43 = 138,580,748.10 : x
  2. Step 2: Convert to fraction form
    239,032,731.78/329,865,914.43 = 138,580,748.10/x
  3. Step 3: Cross multiply
    239,032,731.78x = 329,865,914.43 × 138,580,748.10
  4. Step 4: Simplify right side
    239,032,731.78x = 45,713,065,194,399,984
  5. Step 5: Solve for x
    x = 45,713,065,194,399,984/239,032,731.78
  6. Step 6: Final answer
    x = 191,241,864.05

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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.