Home / 213,048,009.80-319,572,014.70-204,687,254.60

Finding the Fourth Proportional to 213,048,009.80, 319,572,014.70 and 204,687,254.60

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Solution

The fourth proportional to 213,048,009.80, 319,572,014.70 and 204,687,254.60 is: 307,030,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,048,009.80 : 319,572,014.70 = 204,687,254.60 : x
  2. Step 2: Convert to fraction form
    213,048,009.80/319,572,014.70 = 204,687,254.60/x
  3. Step 3: Cross multiply
    213,048,009.80x = 319,572,014.70 × 204,687,254.60
  4. Step 4: Simplify right side
    213,048,009.80x = 65,412,318,335,933,840
  5. Step 5: Solve for x
    x = 65,412,318,335,933,840/213,048,009.80
  6. Step 6: Final answer
    x = 307,030,881.90

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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.