Home / 13,779,267.95-19,014,153.82-7,978,441.20

Finding the Fourth Proportional to 13,779,267.95, 19,014,153.82 and 7,978,441.20

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Solution

The fourth proportional to 13,779,267.95, 19,014,153.82 and 7,978,441.20 is: 11,009,533.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779,267.95 : 19,014,153.82 = 7,978,441.20 : x
  2. Step 2: Convert to fraction form
    13,779,267.95/19,014,153.82 = 7,978,441.20/x
  3. Step 3: Cross multiply
    13,779,267.95x = 19,014,153.82 × 7,978,441.20
  4. Step 4: Simplify right side
    13,779,267.95x = 151,703,308,200,679.28
  5. Step 5: Solve for x
    x = 151,703,308,200,679.28/13,779,267.95
  6. Step 6: Final answer
    x = 11,009,533.22

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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.