Home / 20,348,437.40-28,080,837.11-11,181,670.64

Finding the Fourth Proportional to 20,348,437.40, 28,080,837.11 and 11,181,670.64

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Solution

The fourth proportional to 20,348,437.40, 28,080,837.11 and 11,181,670.64 is: 15,430,701.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348,437.40 : 28,080,837.11 = 11,181,670.64 : x
  2. Step 2: Convert to fraction form
    20,348,437.40/28,080,837.11 = 11,181,670.64/x
  3. Step 3: Cross multiply
    20,348,437.40x = 28,080,837.11 × 11,181,670.64
  4. Step 4: Simplify right side
    20,348,437.40x = 313,990,671,859,509.44
  5. Step 5: Solve for x
    x = 313,990,671,859,509.44/20,348,437.40
  6. Step 6: Final answer
    x = 15,430,701.91

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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.