Home / 121,314,998.70-181,972,498.05-39,433,718.70

Finding the Fourth Proportional to 121,314,998.70, 181,972,498.05 and 39,433,718.70

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Solution

The fourth proportional to 121,314,998.70, 181,972,498.05 and 39,433,718.70 is: 59,150,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,314,998.70 : 181,972,498.05 = 39,433,718.70 : x
  2. Step 2: Convert to fraction form
    121,314,998.70/181,972,498.05 = 39,433,718.70/x
  3. Step 3: Cross multiply
    121,314,998.70x = 181,972,498.05 × 39,433,718.70
  4. Step 4: Simplify right side
    121,314,998.70x = 7,175,852,299,240,000
  5. Step 5: Solve for x
    x = 7,175,852,299,240,000/121,314,998.70
  6. Step 6: Final answer
    x = 59,150,578.05

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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.