Home / 286,881,429.72-395,865,848.10-161,431,439.49

Finding the Fourth Proportional to 286,881,429.72, 395,865,848.10 and 161,431,439.49

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Solution

The fourth proportional to 286,881,429.72, 395,865,848.10 and 161,431,439.49 is: 222,758,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,881,429.72 : 395,865,848.10 = 161,431,439.49 : x
  2. Step 2: Convert to fraction form
    286,881,429.72/395,865,848.10 = 161,431,439.49/x
  3. Step 3: Cross multiply
    286,881,429.72x = 395,865,848.10 × 161,431,439.49
  4. Step 4: Simplify right side
    286,881,429.72x = 63,905,193,703,712,688
  5. Step 5: Solve for x
    x = 63,905,193,703,712,688/286,881,429.72
  6. Step 6: Final answer
    x = 222,758,209.78

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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.