Home / 165,688,720.84-248,593,685.10-77,099,542.48

Finding the Fourth Proportional to 165,688,720.84, 248,593,685.10 and 77,099,542.48

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Solution

The fourth proportional to 165,688,720.84, 248,593,685.10 and 77,099,542.48 is: 115,677,514.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,688,720.84 : 248,593,685.10 = 77,099,542.48 : x
  2. Step 2: Convert to fraction form
    165,688,720.84/248,593,685.10 = 77,099,542.48/x
  3. Step 3: Cross multiply
    165,688,720.84x = 248,593,685.10 × 77,099,542.48
  4. Step 4: Simplify right side
    165,688,720.84x = 19,166,459,384,627,192
  5. Step 5: Solve for x
    x = 19,166,459,384,627,192/165,688,720.84
  6. Step 6: Final answer
    x = 115,677,514.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.