Home / 12,528,051.20-18,768,457.20-6,442,067.60

Finding the Fourth Proportional to 12,528,051.20, 18,768,457.20 and 6,442,067.60

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Solution

The fourth proportional to 12,528,051.20, 18,768,457.20 and 6,442,067.60 is: 9,650,955.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,051.20 : 18,768,457.20 = 6,442,067.60 : x
  2. Step 2: Convert to fraction form
    12,528,051.20/18,768,457.20 = 6,442,067.60/x
  3. Step 3: Cross multiply
    12,528,051.20x = 18,768,457.20 × 6,442,067.60
  4. Step 4: Simplify right side
    12,528,051.20x = 120,907,670,030,106.70
  5. Step 5: Solve for x
    x = 120,907,670,030,106.70/12,528,051.20
  6. Step 6: Final answer
    x = 9,650,955.93

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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.