Home / 13,853,819.28-19,119,119.40-7,742,735.76

Finding the Fourth Proportional to 13,853,819.28, 19,119,119.40 and 7,742,735.76

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Solution

The fourth proportional to 13,853,819.28, 19,119,119.40 and 7,742,735.76 is: 10,685,449.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853,819.28 : 19,119,119.40 = 7,742,735.76 : x
  2. Step 2: Convert to fraction form
    13,853,819.28/19,119,119.40 = 7,742,735.76/x
  3. Step 3: Cross multiply
    13,853,819.28x = 19,119,119.40 × 7,742,735.76
  4. Step 4: Simplify right side
    13,853,819.28x = 148,034,289,478,089.72
  5. Step 5: Solve for x
    x = 148,034,289,478,089.72/13,853,819.28
  6. Step 6: Final answer
    x = 10,685,449.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.