Home / 22,138,953,639.36-30,572,856,355.96-20,932,837,563.41

Finding the Fourth Proportional to 22,138,953,639.36, 30,572,856,355.96 and 20,932,837,563.41

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Solution

The fourth proportional to 22,138,953,639.36, 30,572,856,355.96 and 20,932,837,563.41 is: 28,907,266,638.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,138,953,639.36 : 30,572,856,355.96 = 20,932,837,563.41 : x
  2. Step 2: Convert to fraction form
    22,138,953,639.36/30,572,856,355.96 = 20,932,837,563.41/x
  3. Step 3: Cross multiply
    22,138,953,639.36x = 30,572,856,355.96 × 20,932,837,563.41
  4. Step 4: Simplify right side
    22,138,953,639.36x = 639,976,635,948,777,603,072
  5. Step 5: Solve for x
    x = 639,976,635,948,777,603,072/22,138,953,639.36
  6. Step 6: Final answer
    x = 28,907,266,638.43

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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.