Home / 30,726,721.72-42,402,381.06-16,787,777.41

Finding the Fourth Proportional to 30,726,721.72, 42,402,381.06 and 16,787,777.41

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Solution

The fourth proportional to 30,726,721.72, 42,402,381.06 and 16,787,777.41 is: 23,166,862.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,726,721.72 : 42,402,381.06 = 16,787,777.41 : x
  2. Step 2: Convert to fraction form
    30,726,721.72/42,402,381.06 = 16,787,777.41/x
  3. Step 3: Cross multiply
    30,726,721.72x = 42,402,381.06 × 16,787,777.41
  4. Step 4: Simplify right side
    30,726,721.72x = 711,841,734,889,279.88
  5. Step 5: Solve for x
    x = 711,841,734,889,279.88/30,726,721.72
  6. Step 6: Final answer
    x = 23,166,862.43

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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.