Home / 12,927,420.90-17,839,962.06-7,126,410.18

Finding the Fourth Proportional to 12,927,420.90, 17,839,962.06 and 7,126,410.18

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Solution

The fourth proportional to 12,927,420.90, 17,839,962.06 and 7,126,410.18 is: 9,834,512.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927,420.90 : 17,839,962.06 = 7,126,410.18 : x
  2. Step 2: Convert to fraction form
    12,927,420.90/17,839,962.06 = 7,126,410.18/x
  3. Step 3: Cross multiply
    12,927,420.90x = 17,839,962.06 × 7,126,410.18
  4. Step 4: Simplify right side
    12,927,420.90x = 127,134,887,235,197.75
  5. Step 5: Solve for x
    x = 127,134,887,235,197.75/12,927,420.90
  6. Step 6: Final answer
    x = 9,834,512.87

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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.