Home / 30,872,077.20-42,613,006.59-19,858,827.15

Finding the Fourth Proportional to 30,872,077.20, 42,613,006.59 and 19,858,827.15

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Solution

The fourth proportional to 30,872,077.20, 42,613,006.59 and 19,858,827.15 is: 27,411,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,872,077.20 : 42,613,006.59 = 19,858,827.15 : x
  2. Step 2: Convert to fraction form
    30,872,077.20/42,613,006.59 = 19,858,827.15/x
  3. Step 3: Cross multiply
    30,872,077.20x = 42,613,006.59 × 19,858,827.15
  4. Step 4: Simplify right side
    30,872,077.20x = 846,244,332,212,620.88
  5. Step 5: Solve for x
    x = 846,244,332,212,620.88/30,872,077.20
  6. Step 6: Final answer
    x = 27,411,318.22

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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.