Home / 144,879,863.22-199,868,257.35-86,109,127.38

Finding the Fourth Proportional to 144,879,863.22, 199,868,257.35 and 86,109,127.38

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Solution

The fourth proportional to 144,879,863.22, 199,868,257.35 and 86,109,127.38 is: 118,791,396.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,879,863.22 : 199,868,257.35 = 86,109,127.38 : x
  2. Step 2: Convert to fraction form
    144,879,863.22/199,868,257.35 = 86,109,127.38/x
  3. Step 3: Cross multiply
    144,879,863.22x = 199,868,257.35 × 86,109,127.38
  4. Step 4: Simplify right side
    144,879,863.22x = 17,210,481,231,369,770
  5. Step 5: Solve for x
    x = 17,210,481,231,369,770/144,879,863.22
  6. Step 6: Final answer
    x = 118,791,396.19

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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.