Home / 144,879,864.22-199,868,258.73-86,109,128.38

Finding the Fourth Proportional to 144,879,864.22, 199,868,258.73 and 86,109,128.38

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Solution

The fourth proportional to 144,879,864.22, 199,868,258.73 and 86,109,128.38 is: 118,791,397.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,879,864.22 : 199,868,258.73 = 86,109,128.38 : x
  2. Step 2: Convert to fraction form
    144,879,864.22/199,868,258.73 = 86,109,128.38/x
  3. Step 3: Cross multiply
    144,879,864.22x = 199,868,258.73 × 86,109,128.38
  4. Step 4: Simplify right side
    144,879,864.22x = 17,210,481,550,068,624
  5. Step 5: Solve for x
    x = 17,210,481,550,068,624/144,879,864.22
  6. Step 6: Final answer
    x = 118,791,397.57

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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.