Home / 12,873,386.40-19,322,521.20-6,490,845.60

Finding the Fourth Proportional to 12,873,386.40, 19,322,521.20 and 6,490,845.60

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Solution

The fourth proportional to 12,873,386.40, 19,322,521.20 and 6,490,845.60 is: 9,742,541.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873,386.40 : 19,322,521.20 = 6,490,845.60 : x
  2. Step 2: Convert to fraction form
    12,873,386.40/19,322,521.20 = 6,490,845.60/x
  3. Step 3: Cross multiply
    12,873,386.40x = 19,322,521.20 × 6,490,845.60
  4. Step 4: Simplify right side
    12,873,386.40x = 125,419,501,711,926.70
  5. Step 5: Solve for x
    x = 125,419,501,711,926.70/12,873,386.40
  6. Step 6: Final answer
    x = 9,742,541.54

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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.