Home / 211,712,005.20-317,568,007.80-157,964,293.20

Finding the Fourth Proportional to 211,712,005.20, 317,568,007.80 and 157,964,293.20

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Solution

The fourth proportional to 211,712,005.20, 317,568,007.80 and 157,964,293.20 is: 236,946,439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,712,005.20 : 317,568,007.80 = 157,964,293.20 : x
  2. Step 2: Convert to fraction form
    211,712,005.20/317,568,007.80 = 157,964,293.20/x
  3. Step 3: Cross multiply
    211,712,005.20x = 317,568,007.80 × 157,964,293.20
  4. Step 4: Simplify right side
    211,712,005.20x = 50,164,405,895,059,088
  5. Step 5: Solve for x
    x = 50,164,405,895,059,088/211,712,005.20
  6. Step 6: Final answer
    x = 236,946,439.80

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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.