Home / 56,920,128.80-85,379,886.64-13,789,310.40

Finding the Fourth Proportional to 56,920,128.80, 85,379,886.64 and 13,789,310.40

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Solution

The fourth proportional to 56,920,128.80, 85,379,886.64 and 13,789,310.40 is: 20,683,891.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,920,128.80 : 85,379,886.64 = 13,789,310.40 : x
  2. Step 2: Convert to fraction form
    56,920,128.80/85,379,886.64 = 13,789,310.40/x
  3. Step 3: Cross multiply
    56,920,128.80x = 85,379,886.64 × 13,789,310.40
  4. Step 4: Simplify right side
    56,920,128.80x = 1,177,329,758,795,773
  5. Step 5: Solve for x
    x = 1,177,329,758,795,773/56,920,128.80
  6. Step 6: Final answer
    x = 20,683,891.33

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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.