Home / 117,101,253.69-161,600,678.91-64,891,161.45

Finding the Fourth Proportional to 117,101,253.69, 161,600,678.91 and 64,891,161.45

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Solution

The fourth proportional to 117,101,253.69, 161,600,678.91 and 64,891,161.45 is: 89,550,328.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,101,253.69 : 161,600,678.91 = 64,891,161.45 : x
  2. Step 2: Convert to fraction form
    117,101,253.69/161,600,678.91 = 64,891,161.45/x
  3. Step 3: Cross multiply
    117,101,253.69x = 161,600,678.91 × 64,891,161.45
  4. Step 4: Simplify right side
    117,101,253.69x = 10,486,455,745,578,420
  5. Step 5: Solve for x
    x = 10,486,455,745,578,420/117,101,253.69
  6. Step 6: Final answer
    x = 89,550,328.58

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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.