Home / 144,519,786.69-199,436,800.48-78,440,281.32

Finding the Fourth Proportional to 144,519,786.69, 199,436,800.48 and 78,440,281.32

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Solution

The fourth proportional to 144,519,786.69, 199,436,800.48 and 78,440,281.32 is: 108,247,314.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,519,786.69 : 199,436,800.48 = 78,440,281.32 : x
  2. Step 2: Convert to fraction form
    144,519,786.69/199,436,800.48 = 78,440,281.32/x
  3. Step 3: Cross multiply
    144,519,786.69x = 199,436,800.48 × 78,440,281.32
  4. Step 4: Simplify right side
    144,519,786.69x = 15,643,878,735,211,908
  5. Step 5: Solve for x
    x = 15,643,878,735,211,908/144,519,786.69
  6. Step 6: Final answer
    x = 108,247,314.04

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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.