Home / 11,539,909.36-15,841,682.85-9,905,479.21

Finding the Fourth Proportional to 11,539,909.36, 15,841,682.85 and 9,905,479.21

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Solution

The fourth proportional to 11,539,909.36, 15,841,682.85 and 9,905,479.21 is: 13,597,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,539,909.36 : 15,841,682.85 = 9,905,479.21 : x
  2. Step 2: Convert to fraction form
    11,539,909.36/15,841,682.85 = 9,905,479.21/x
  3. Step 3: Cross multiply
    11,539,909.36x = 15,841,682.85 × 9,905,479.21
  4. Step 4: Simplify right side
    11,539,909.36x = 156,919,460,122,088.56
  5. Step 5: Solve for x
    x = 156,919,460,122,088.56/11,539,909.36
  6. Step 6: Final answer
    x = 13,597,980.30

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.