Home / 12,889,631.75-17,788,159.51-7,384,070.66

Finding the Fourth Proportional to 12,889,631.75, 17,788,159.51 and 7,384,070.66

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Solution

The fourth proportional to 12,889,631.75, 17,788,159.51 and 7,384,070.66 is: 10,190,285.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,631.75 : 17,788,159.51 = 7,384,070.66 : x
  2. Step 2: Convert to fraction form
    12,889,631.75/17,788,159.51 = 7,384,070.66/x
  3. Step 3: Cross multiply
    12,889,631.75x = 17,788,159.51 × 7,384,070.66
  4. Step 4: Simplify right side
    12,889,631.75x = 131,349,026,759,201.19
  5. Step 5: Solve for x
    x = 131,349,026,759,201.19/12,889,631.75
  6. Step 6: Final answer
    x = 10,190,285.44

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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.