Home / 209,869,891.16-314,845,186.88-80,467,409.05

Finding the Fourth Proportional to 209,869,891.16, 314,845,186.88 and 80,467,409.05

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Solution

The fourth proportional to 209,869,891.16, 314,845,186.88 and 80,467,409.05 is: 120,716,584.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,869,891.16 : 314,845,186.88 = 80,467,409.05 : x
  2. Step 2: Convert to fraction form
    209,869,891.16/314,845,186.88 = 80,467,409.05/x
  3. Step 3: Cross multiply
    209,869,891.16x = 314,845,186.88 × 80,467,409.05
  4. Step 4: Simplify right side
    209,869,891.16x = 25,334,776,439,510,708
  5. Step 5: Solve for x
    x = 25,334,776,439,510,708/209,869,891.16
  6. Step 6: Final answer
    x = 120,716,584.45

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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.