Home / 28,066,516.40-42,099,774.60-12,949,972.40

Finding the Fourth Proportional to 28,066,516.40, 42,099,774.60 and 12,949,972.40

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Solution

The fourth proportional to 28,066,516.40, 42,099,774.60 and 12,949,972.40 is: 19,424,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066,516.40 : 42,099,774.60 = 12,949,972.40 : x
  2. Step 2: Convert to fraction form
    28,066,516.40/42,099,774.60 = 12,949,972.40/x
  3. Step 3: Cross multiply
    28,066,516.40x = 42,099,774.60 × 12,949,972.40
  4. Step 4: Simplify right side
    28,066,516.40x = 545,190,919,116,221.06
  5. Step 5: Solve for x
    x = 545,190,919,116,221.06/28,066,516.40
  6. Step 6: Final answer
    x = 19,424,958.60

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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.