Home / 28,920,121,170.56-39,907,576,974.72-16,230,406,040.32

Finding the Fourth Proportional to 28,920,121,170.56, 39,907,576,974.72 and 16,230,406,040.32

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Solution

The fourth proportional to 28,920,121,170.56, 39,907,576,974.72 and 16,230,406,040.32 is: 22,396,731,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,920,121,170.56 : 39,907,576,974.72 = 16,230,406,040.32 : x
  2. Step 2: Convert to fraction form
    28,920,121,170.56/39,907,576,974.72 = 16,230,406,040.32/x
  3. Step 3: Cross multiply
    28,920,121,170.56x = 39,907,576,974.72 × 16,230,406,040.32
  4. Step 4: Simplify right side
    28,920,121,170.56x = 647,716,178,385,030,873,088
  5. Step 5: Solve for x
    x = 647,716,178,385,030,873,088/28,920,121,170.56
  6. Step 6: Final answer
    x = 22,396,731,139.72

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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.