Home / 30,802,790.19-42,508,351.77-16,863,910.05

Finding the Fourth Proportional to 30,802,790.19, 42,508,351.77 and 16,863,910.05

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Solution

The fourth proportional to 30,802,790.19, 42,508,351.77 and 16,863,910.05 is: 23,272,470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,802,790.19 : 42,508,351.77 = 16,863,910.05 : x
  2. Step 2: Convert to fraction form
    30,802,790.19/42,508,351.77 = 16,863,910.05/x
  3. Step 3: Cross multiply
    30,802,790.19x = 42,508,351.77 × 16,863,910.05
  4. Step 4: Simplify right side
    30,802,790.19x = 716,857,020,623,038.38
  5. Step 5: Solve for x
    x = 716,857,020,623,038.38/30,802,790.19
  6. Step 6: Final answer
    x = 23,272,470.32

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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.