Home / 30,802,812.19-42,508,382.15-16,863,932.05

Finding the Fourth Proportional to 30,802,812.19, 42,508,382.15 and 16,863,932.05

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Solution

The fourth proportional to 30,802,812.19, 42,508,382.15 and 16,863,932.05 is: 23,272,500.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,802,812.19 : 42,508,382.15 = 16,863,932.05 : x
  2. Step 2: Convert to fraction form
    30,802,812.19/42,508,382.15 = 16,863,932.05/x
  3. Step 3: Cross multiply
    30,802,812.19x = 42,508,382.15 × 16,863,932.05
  4. Step 4: Simplify right side
    30,802,812.19x = 716,858,468,133,032.88
  5. Step 5: Solve for x
    x = 716,858,468,133,032.88/30,802,812.19
  6. Step 6: Final answer
    x = 23,272,500.70

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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.