Home / 30,553,523.82-42,163,021.71-16,802,487.90

Finding the Fourth Proportional to 30,553,523.82, 42,163,021.71 and 16,802,487.90

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Solution

The fourth proportional to 30,553,523.82, 42,163,021.71 and 16,802,487.90 is: 23,186,970.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,553,523.82 : 42,163,021.71 = 16,802,487.90 : x
  2. Step 2: Convert to fraction form
    30,553,523.82/42,163,021.71 = 16,802,487.90/x
  3. Step 3: Cross multiply
    30,553,523.82x = 42,163,021.71 × 16,802,487.90
  4. Step 4: Simplify right side
    30,553,523.82x = 708,443,662,109,712.25
  5. Step 5: Solve for x
    x = 708,443,662,109,712.25/30,553,523.82
  6. Step 6: Final answer
    x = 23,186,970.72

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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.