Home / 211,968,007.20-317,952,010.80-177,955,783.20

Finding the Fourth Proportional to 211,968,007.20, 317,952,010.80 and 177,955,783.20

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Solution

The fourth proportional to 211,968,007.20, 317,952,010.80 and 177,955,783.20 is: 266,933,674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,968,007.20 : 317,952,010.80 = 177,955,783.20 : x
  2. Step 2: Convert to fraction form
    211,968,007.20/317,952,010.80 = 177,955,783.20/x
  3. Step 3: Cross multiply
    211,968,007.20x = 317,952,010.80 × 177,955,783.20
  4. Step 4: Simplify right side
    211,968,007.20x = 56,581,399,101,928,856
  5. Step 5: Solve for x
    x = 56,581,399,101,928,856/211,968,007.20
  6. Step 6: Final answer
    x = 266,933,674.80

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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.