Home / 30,726,807.20-42,402,499.30-16,787,863.07

Finding the Fourth Proportional to 30,726,807.20, 42,402,499.30 and 16,787,863.07

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Solution

The fourth proportional to 30,726,807.20, 42,402,499.30 and 16,787,863.07 is: 23,166,980.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,726,807.20 : 42,402,499.30 = 16,787,863.07 : x
  2. Step 2: Convert to fraction form
    30,726,807.20/42,402,499.30 = 16,787,863.07/x
  3. Step 3: Cross multiply
    30,726,807.20x = 42,402,499.30 × 16,787,863.07
  4. Step 4: Simplify right side
    30,726,807.20x = 711,847,351,947,720.88
  5. Step 5: Solve for x
    x = 711,847,351,947,720.88/30,726,807.20
  6. Step 6: Final answer
    x = 23,166,980.78

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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.