Home / 13,779,254.07-19,014,134.67-7,978,427.33

Finding the Fourth Proportional to 13,779,254.07, 19,014,134.67 and 7,978,427.33

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Solution

The fourth proportional to 13,779,254.07, 19,014,134.67 and 7,978,427.33 is: 11,009,514.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779,254.07 : 19,014,134.67 = 7,978,427.33 : x
  2. Step 2: Convert to fraction form
    13,779,254.07/19,014,134.67 = 7,978,427.33/x
  3. Step 3: Cross multiply
    13,779,254.07x = 19,014,134.67 × 7,978,427.33
  4. Step 4: Simplify right side
    13,779,254.07x = 151,702,891,612,357.88
  5. Step 5: Solve for x
    x = 151,702,891,612,357.88/13,779,254.07
  6. Step 6: Final answer
    x = 11,009,514.07

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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.