Home / 20,370,539.07-28,111,875.81-11,203,422.39

Finding the Fourth Proportional to 20,370,539.07, 28,111,875.81 and 11,203,422.39

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Solution

The fourth proportional to 20,370,539.07, 28,111,875.81 and 11,203,422.39 is: 15,461,015.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370,539.07 : 28,111,875.81 = 11,203,422.39 : x
  2. Step 2: Convert to fraction form
    20,370,539.07/28,111,875.81 = 11,203,422.39/x
  3. Step 3: Cross multiply
    20,370,539.07x = 28,111,875.81 × 11,203,422.39
  4. Step 4: Simplify right side
    20,370,539.07x = 314,949,218,874,653.38
  5. Step 5: Solve for x
    x = 314,949,218,874,653.38/20,370,539.07
  6. Step 6: Final answer
    x = 15,461,015.43

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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.