Home / 12,421,931.60-18,621,816.60-4,847,135.60

Finding the Fourth Proportional to 12,421,931.60, 18,621,816.60 and 4,847,135.60

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Solution

The fourth proportional to 12,421,931.60, 18,621,816.60 and 4,847,135.60 is: 7,266,379.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,421,931.60 : 18,621,816.60 = 4,847,135.60 : x
  2. Step 2: Convert to fraction form
    12,421,931.60/18,621,816.60 = 4,847,135.60/x
  3. Step 3: Cross multiply
    12,421,931.60x = 18,621,816.60 × 4,847,135.60
  4. Step 4: Simplify right side
    12,421,931.60x = 90,262,470,178,530.95
  5. Step 5: Solve for x
    x = 90,262,470,178,530.95/12,421,931.60
  6. Step 6: Final answer
    x = 7,266,379.58

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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.