Home / 213,177,212.80-319,340,666.40-122,194,513.60

Finding the Fourth Proportional to 213,177,212.80, 319,340,666.40 and 122,194,513.60

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Solution

The fourth proportional to 213,177,212.80, 319,340,666.40 and 122,194,513.60 is: 183,048,070.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,177,212.80 : 319,340,666.40 = 122,194,513.60 : x
  2. Step 2: Convert to fraction form
    213,177,212.80/319,340,666.40 = 122,194,513.60/x
  3. Step 3: Cross multiply
    213,177,212.80x = 319,340,666.40 × 122,194,513.60
  4. Step 4: Simplify right side
    213,177,212.80x = 39,021,677,403,447,856
  5. Step 5: Solve for x
    x = 39,021,677,403,447,856/213,177,212.80
  6. Step 6: Final answer
    x = 183,048,070.15

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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.