Home / 13,659,262.61-18,850,856.90-7,779,145.37

Finding the Fourth Proportional to 13,659,262.61, 18,850,856.90 and 7,779,145.37

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Solution

The fourth proportional to 13,659,262.61, 18,850,856.90 and 7,779,145.37 is: 10,735,832.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659,262.61 : 18,850,856.90 = 7,779,145.37 : x
  2. Step 2: Convert to fraction form
    13,659,262.61/18,850,856.90 = 7,779,145.37/x
  3. Step 3: Cross multiply
    13,659,262.61x = 18,850,856.90 × 7,779,145.37
  4. Step 4: Simplify right side
    13,659,262.61x = 146,643,556,041,017.53
  5. Step 5: Solve for x
    x = 146,643,556,041,017.53/13,659,262.61
  6. Step 6: Final answer
    x = 10,735,832.55

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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.