Home / 12,671,964.36-17,487,204.48-7,166,420.28

Finding the Fourth Proportional to 12,671,964.36, 17,487,204.48 and 7,166,420.28

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Solution

The fourth proportional to 12,671,964.36, 17,487,204.48 and 7,166,420.28 is: 9,889,599.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671,964.36 : 17,487,204.48 = 7,166,420.28 : x
  2. Step 2: Convert to fraction form
    12,671,964.36/17,487,204.48 = 7,166,420.28/x
  3. Step 3: Cross multiply
    12,671,964.36x = 17,487,204.48 × 7,166,420.28
  4. Step 4: Simplify right side
    12,671,964.36x = 125,320,656,825,978.86
  5. Step 5: Solve for x
    x = 125,320,656,825,978.86/12,671,964.36
  6. Step 6: Final answer
    x = 9,889,599.85

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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.