Home / 144,632,087.82-199,593,720.72-78,553,878.66

Finding the Fourth Proportional to 144,632,087.82, 199,593,720.72 and 78,553,878.66

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Solution

The fourth proportional to 144,632,087.82, 199,593,720.72 and 78,553,878.66 is: 108,405,134.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,632,087.82 : 199,593,720.72 = 78,553,878.66 : x
  2. Step 2: Convert to fraction form
    144,632,087.82/199,593,720.72 = 78,553,878.66/x
  3. Step 3: Cross multiply
    144,632,087.82x = 199,593,720.72 × 78,553,878.66
  4. Step 4: Simplify right side
    144,632,087.82x = 15,678,860,918,736,808
  5. Step 5: Solve for x
    x = 15,678,860,918,736,808/144,632,087.82
  6. Step 6: Final answer
    x = 108,405,134.40

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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.