Home / 31,699,455.15-47,515,996.13-13,265,961.51

Finding the Fourth Proportional to 31,699,455.15, 47,515,996.13 and 13,265,961.51

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Solution

The fourth proportional to 31,699,455.15, 47,515,996.13 and 13,265,961.51 is: 19,885,053.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,699,455.15 : 47,515,996.13 = 13,265,961.51 : x
  2. Step 2: Convert to fraction form
    31,699,455.15/47,515,996.13 = 13,265,961.51/x
  3. Step 3: Cross multiply
    31,699,455.15x = 47,515,996.13 × 13,265,961.51
  4. Step 4: Simplify right side
    31,699,455.15x = 630,345,375,963,618
  5. Step 5: Solve for x
    x = 630,345,375,963,618/31,699,455.15
  6. Step 6: Final answer
    x = 19,885,053.96

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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.