Home / 21,199,271.06-31,798,228.34-8,909,745.32

Finding the Fourth Proportional to 21,199,271.06, 31,798,228.34 and 8,909,745.32

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Solution

The fourth proportional to 21,199,271.06, 31,798,228.34 and 8,909,745.32 is: 13,364,332.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199,271.06 : 31,798,228.34 = 8,909,745.32 : x
  2. Step 2: Convert to fraction form
    21,199,271.06/31,798,228.34 = 8,909,745.32/x
  3. Step 3: Cross multiply
    21,199,271.06x = 31,798,228.34 × 8,909,745.32
  4. Step 4: Simplify right side
    21,199,271.06x = 283,314,115,933,066.50
  5. Step 5: Solve for x
    x = 283,314,115,933,066.50/21,199,271.06
  6. Step 6: Final answer
    x = 13,364,332.91

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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.