Home / 20,678,956.08-31,004,069.94-9,158,145.36

Finding the Fourth Proportional to 20,678,956.08, 31,004,069.94 and 9,158,145.36

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Solution

The fourth proportional to 20,678,956.08, 31,004,069.94 and 9,158,145.36 is: 13,730,856.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,678,956.08 : 31,004,069.94 = 9,158,145.36 : x
  2. Step 2: Convert to fraction form
    20,678,956.08/31,004,069.94 = 9,158,145.36/x
  3. Step 3: Cross multiply
    20,678,956.08x = 31,004,069.94 × 9,158,145.36
  4. Step 4: Simplify right side
    20,678,956.08x = 283,939,779,262,126.50
  5. Step 5: Solve for x
    x = 283,939,779,262,126.50/20,678,956.08
  6. Step 6: Final answer
    x = 13,730,856.54

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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.