Home / 211,443,193.80-317,070,312.30-82,007,785.80

Finding the Fourth Proportional to 211,443,193.80, 317,070,312.30 and 82,007,785.80

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Solution

The fourth proportional to 211,443,193.80, 317,070,312.30 and 82,007,785.80 is: 122,975,035.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,443,193.80 : 317,070,312.30 = 82,007,785.80 : x
  2. Step 2: Convert to fraction form
    211,443,193.80/317,070,312.30 = 82,007,785.80/x
  3. Step 3: Cross multiply
    211,443,193.80x = 317,070,312.30 × 82,007,785.80
  4. Step 4: Simplify right side
    211,443,193.80x = 26,002,234,254,637,504
  5. Step 5: Solve for x
    x = 26,002,234,254,637,504/211,443,193.80
  6. Step 6: Final answer
    x = 122,975,035.46

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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.