Home / 31,178,268,344.40-46,767,785,154.12-20,622,064,442.64

Finding the Fourth Proportional to 31,178,268,344.40, 46,767,785,154.12 and 20,622,064,442.64

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Solution

The fourth proportional to 31,178,268,344.40, 46,767,785,154.12 and 20,622,064,442.64 is: 30,933,349,749.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,178,268,344.40 : 46,767,785,154.12 = 20,622,064,442.64 : x
  2. Step 2: Convert to fraction form
    31,178,268,344.40/46,767,785,154.12 = 20,622,064,442.64/x
  3. Step 3: Cross multiply
    31,178,268,344.40x = 46,767,785,154.12 × 20,622,064,442.64
  4. Step 4: Simplify right side
    31,178,268,344.40x = 964,448,279,287,804,985,344
  5. Step 5: Solve for x
    x = 964,448,279,287,804,985,344/31,178,268,344.40
  6. Step 6: Final answer
    x = 30,933,349,749.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.