Home / 39,228,705.64-54,136,111.76-21,589,639.11

Finding the Fourth Proportional to 39,228,705.64, 54,136,111.76 and 21,589,639.11

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Solution

The fourth proportional to 39,228,705.64, 54,136,111.76 and 21,589,639.11 is: 29,793,976.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,228,705.64 : 54,136,111.76 = 21,589,639.11 : x
  2. Step 2: Convert to fraction form
    39,228,705.64/54,136,111.76 = 21,589,639.11/x
  3. Step 3: Cross multiply
    39,228,705.64x = 54,136,111.76 × 21,589,639.11
  4. Step 4: Simplify right side
    39,228,705.64x = 1,168,779,115,717,026.75
  5. Step 5: Solve for x
    x = 1,168,779,115,717,026.75/39,228,705.64
  6. Step 6: Final answer
    x = 29,793,976.03

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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.