Home / 211,343,219.40-317,014,829.10-133,859,121.60

Finding the Fourth Proportional to 211,343,219.40, 317,014,829.10 and 133,859,121.60

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Solution

The fourth proportional to 211,343,219.40, 317,014,829.10 and 133,859,121.60 is: 200,788,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,343,219.40 : 317,014,829.10 = 133,859,121.60 : x
  2. Step 2: Convert to fraction form
    211,343,219.40/317,014,829.10 = 133,859,121.60/x
  3. Step 3: Cross multiply
    211,343,219.40x = 317,014,829.10 × 133,859,121.60
  4. Step 4: Simplify right side
    211,343,219.40x = 42,435,326,557,500,120
  5. Step 5: Solve for x
    x = 42,435,326,557,500,120/211,343,219.40
  6. Step 6: Final answer
    x = 200,788,682.40

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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.