Home / 139,619,432.28-209,443,451.40-53,430,330.36

Finding the Fourth Proportional to 139,619,432.28, 209,443,451.40 and 53,430,330.36

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Solution

The fourth proportional to 139,619,432.28, 209,443,451.40 and 53,430,330.36 is: 80,150,969.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,619,432.28 : 209,443,451.40 = 53,430,330.36 : x
  2. Step 2: Convert to fraction form
    139,619,432.28/209,443,451.40 = 53,430,330.36/x
  3. Step 3: Cross multiply
    139,619,432.28x = 209,443,451.40 × 53,430,330.36
  4. Step 4: Simplify right side
    139,619,432.28x = 11,190,632,800,040,604
  5. Step 5: Solve for x
    x = 11,190,632,800,040,604/139,619,432.28
  6. Step 6: Final answer
    x = 80,150,969.08

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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.