Home / 144,152,272.82-198,947,614.77-81,431,015.51

Finding the Fourth Proportional to 144,152,272.82, 198,947,614.77 and 81,431,015.51

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Solution

The fourth proportional to 144,152,272.82, 198,947,614.77 and 81,431,015.51 is: 112,384,674.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,152,272.82 : 198,947,614.77 = 81,431,015.51 : x
  2. Step 2: Convert to fraction form
    144,152,272.82/198,947,614.77 = 81,431,015.51/x
  3. Step 3: Cross multiply
    144,152,272.82x = 198,947,614.77 × 81,431,015.51
  4. Step 4: Simplify right side
    144,152,272.82x = 16,200,506,303,018,636
  5. Step 5: Solve for x
    x = 16,200,506,303,018,636/144,152,272.82
  6. Step 6: Final answer
    x = 112,384,674.81

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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.