Home / 19,157,628.87-28,711,492.07-7,784,781.75

Finding the Fourth Proportional to 19,157,628.87, 28,711,492.07 and 7,784,781.75

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Solution

The fourth proportional to 19,157,628.87, 28,711,492.07 and 7,784,781.75 is: 11,667,033.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157,628.87 : 28,711,492.07 = 7,784,781.75 : x
  2. Step 2: Convert to fraction form
    19,157,628.87/28,711,492.07 = 7,784,781.75/x
  3. Step 3: Cross multiply
    19,157,628.87x = 28,711,492.07 × 7,784,781.75
  4. Step 4: Simplify right side
    19,157,628.87x = 223,512,699,442,881.81
  5. Step 5: Solve for x
    x = 223,512,699,442,881.81/19,157,628.87
  6. Step 6: Final answer
    x = 11,667,033.59

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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.