Home / 213,507,833.40-320,261,750.10-127,343,532.60

Finding the Fourth Proportional to 213,507,833.40, 320,261,750.10 and 127,343,532.60

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Solution

The fourth proportional to 213,507,833.40, 320,261,750.10 and 127,343,532.60 is: 191,015,298.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,507,833.40 : 320,261,750.10 = 127,343,532.60 : x
  2. Step 2: Convert to fraction form
    213,507,833.40/320,261,750.10 = 127,343,532.60/x
  3. Step 3: Cross multiply
    213,507,833.40x = 320,261,750.10 × 127,343,532.60
  4. Step 4: Simplify right side
    213,507,833.40x = 40,783,262,614,392,408
  5. Step 5: Solve for x
    x = 40,783,262,614,392,408/213,507,833.40
  6. Step 6: Final answer
    x = 191,015,298.90

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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.