Home / 12,758,999.40-19,138,499.10-11,642,973.30

Finding the Fourth Proportional to 12,758,999.40, 19,138,499.10 and 11,642,973.30

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Solution

The fourth proportional to 12,758,999.40, 19,138,499.10 and 11,642,973.30 is: 17,464,459.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,758,999.40 : 19,138,499.10 = 11,642,973.30 : x
  2. Step 2: Convert to fraction form
    12,758,999.40/19,138,499.10 = 11,642,973.30/x
  3. Step 3: Cross multiply
    12,758,999.40x = 19,138,499.10 × 11,642,973.30
  4. Step 4: Simplify right side
    12,758,999.40x = 222,829,034,023,374.06
  5. Step 5: Solve for x
    x = 222,829,034,023,374.06/12,758,999.40
  6. Step 6: Final answer
    x = 17,464,459.95

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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.