Home / 20,370,534.58-28,111,869.60-11,203,417.90

Finding the Fourth Proportional to 20,370,534.58, 28,111,869.60 and 11,203,417.90

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Solution

The fourth proportional to 20,370,534.58, 28,111,869.60 and 11,203,417.90 is: 15,461,009.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370,534.58 : 28,111,869.60 = 11,203,417.90 : x
  2. Step 2: Convert to fraction form
    20,370,534.58/28,111,869.60 = 11,203,417.90/x
  3. Step 3: Cross multiply
    20,370,534.58x = 28,111,869.60 × 11,203,417.90
  4. Step 4: Simplify right side
    20,370,534.58x = 314,949,023,079,105.88
  5. Step 5: Solve for x
    x = 314,949,023,079,105.88/20,370,534.58
  6. Step 6: Final answer
    x = 15,461,009.23

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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.