Home / 30,802,812.69-42,508,382.84-16,863,932.55

Finding the Fourth Proportional to 30,802,812.69, 42,508,382.84 and 16,863,932.55

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Solution

The fourth proportional to 30,802,812.69, 42,508,382.84 and 16,863,932.55 is: 23,272,501.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,802,812.69 : 42,508,382.84 = 16,863,932.55 : x
  2. Step 2: Convert to fraction form
    30,802,812.69/42,508,382.84 = 16,863,932.55/x
  3. Step 3: Cross multiply
    30,802,812.69x = 42,508,382.84 × 16,863,932.55
  4. Step 4: Simplify right side
    30,802,812.69x = 716,858,500,939,017.88
  5. Step 5: Solve for x
    x = 716,858,500,939,017.88/30,802,812.69
  6. Step 6: Final answer
    x = 23,272,501.38

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1.5x scale

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.