Home / 144,512,162.07-199,426,980.84-78,432,661.05

Finding the Fourth Proportional to 144,512,162.07, 199,426,980.84 and 78,432,661.05

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Solution

The fourth proportional to 144,512,162.07, 199,426,980.84 and 78,432,661.05 is: 108,237,179.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,512,162.07 : 199,426,980.84 = 78,432,661.05 : x
  2. Step 2: Convert to fraction form
    144,512,162.07/199,426,980.84 = 78,432,661.05/x
  3. Step 3: Cross multiply
    144,512,162.07x = 199,426,980.84 × 78,432,661.05
  4. Step 4: Simplify right side
    144,512,162.07x = 15,641,588,792,448,564
  5. Step 5: Solve for x
    x = 15,641,588,792,448,564/144,512,162.07
  6. Step 6: Final answer
    x = 108,237,179.27

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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.