Home / 20,291,986.94-30,437,536.80-4,939,357.70

Finding the Fourth Proportional to 20,291,986.94, 30,437,536.80 and 4,939,357.70

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Solution

The fourth proportional to 20,291,986.94, 30,437,536.80 and 4,939,357.70 is: 7,408,928.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,291,986.94 : 30,437,536.80 = 4,939,357.70 : x
  2. Step 2: Convert to fraction form
    20,291,986.94/30,437,536.80 = 4,939,357.70/x
  3. Step 3: Cross multiply
    20,291,986.94x = 30,437,536.80 × 4,939,357.70
  4. Step 4: Simplify right side
    20,291,986.94x = 150,341,881,762,113.38
  5. Step 5: Solve for x
    x = 150,341,881,762,113.38/20,291,986.94
  6. Step 6: Final answer
    x = 7,408,928.57

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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.