Home / 30,726,720.72-42,402,379.68-16,787,776.41

Finding the Fourth Proportional to 30,726,720.72, 42,402,379.68 and 16,787,776.41

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Solution

The fourth proportional to 30,726,720.72, 42,402,379.68 and 16,787,776.41 is: 23,166,861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,726,720.72 : 42,402,379.68 = 16,787,776.41 : x
  2. Step 2: Convert to fraction form
    30,726,720.72/42,402,379.68 = 16,787,776.41/x
  3. Step 3: Cross multiply
    30,726,720.72x = 42,402,379.68 × 16,787,776.41
  4. Step 4: Simplify right side
    30,726,720.72x = 711,841,669,319,767.38
  5. Step 5: Solve for x
    x = 711,841,669,319,767.38/30,726,720.72
  6. Step 6: Final answer
    x = 23,166,861.05

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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.