Home / 20,013,562-27,621,680.16-12,672,077.68

Finding the Fourth Proportional to 20,013,562, 27,621,680.16 and 12,672,077.68

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Solution

The fourth proportional to 20,013,562, 27,621,680.16 and 12,672,077.68 is: 17,489,344.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013,562 : 27,621,680.16 = 12,672,077.68 : x
  2. Step 2: Convert to fraction form
    20,013,562/27,621,680.16 = 12,672,077.68/x
  3. Step 3: Cross multiply
    20,013,562x = 27,621,680.16 × 12,672,077.68
  4. Step 4: Simplify right side
    20,013,562x = 350,024,076,639,634.81
  5. Step 5: Solve for x
    x = 350,024,076,639,634.81/20,013,562
  6. Step 6: Final answer
    x = 17,489,344.31

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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.