Home / 142,097,990.88-196,095,531.32-80,218,329.45

Finding the Fourth Proportional to 142,097,990.88, 196,095,531.32 and 80,218,329.45

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Solution

The fourth proportional to 142,097,990.88, 196,095,531.32 and 80,218,329.45 is: 110,701,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,097,990.88 : 196,095,531.32 = 80,218,329.45 : x
  2. Step 2: Convert to fraction form
    142,097,990.88/196,095,531.32 = 80,218,329.45/x
  3. Step 3: Cross multiply
    142,097,990.88x = 196,095,531.32 × 80,218,329.45
  4. Step 4: Simplify right side
    142,097,990.88x = 15,730,455,934,716,554
  5. Step 5: Solve for x
    x = 15,730,455,934,716,554/142,097,990.88
  6. Step 6: Final answer
    x = 110,701,466.20

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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.