Home / 211,429,292.80-317,049,460.80-81,993,884.80

Finding the Fourth Proportional to 211,429,292.80, 317,049,460.80 and 81,993,884.80

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Solution

The fourth proportional to 211,429,292.80, 317,049,460.80 and 81,993,884.80 is: 122,954,187.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,429,292.80 : 317,049,460.80 = 81,993,884.80 : x
  2. Step 2: Convert to fraction form
    211,429,292.80/317,049,460.80 = 81,993,884.80/x
  3. Step 3: Cross multiply
    211,429,292.80x = 317,049,460.80 × 81,993,884.80
  4. Step 4: Simplify right side
    211,429,292.80x = 25,996,116,964,737,316
  5. Step 5: Solve for x
    x = 25,996,116,964,737,316/211,429,292.80
  6. Step 6: Final answer
    x = 122,954,187.76

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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.