Home / 211,968,034.80-317,952,052.20-66,413,756.40

Finding the Fourth Proportional to 211,968,034.80, 317,952,052.20 and 66,413,756.40

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Solution

The fourth proportional to 211,968,034.80, 317,952,052.20 and 66,413,756.40 is: 99,620,634.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,968,034.80 : 317,952,052.20 = 66,413,756.40 : x
  2. Step 2: Convert to fraction form
    211,968,034.80/317,952,052.20 = 66,413,756.40/x
  3. Step 3: Cross multiply
    211,968,034.80x = 317,952,052.20 × 66,413,756.40
  4. Step 4: Simplify right side
    211,968,034.80x = 21,116,390,141,690,884
  5. Step 5: Solve for x
    x = 21,116,390,141,690,884/211,968,034.80
  6. Step 6: Final answer
    x = 99,620,634.60

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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.