Home / 20,606,631.60-30,909,947.40-11,648,679.60

Finding the Fourth Proportional to 20,606,631.60, 30,909,947.40 and 11,648,679.60

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Solution

The fourth proportional to 20,606,631.60, 30,909,947.40 and 11,648,679.60 is: 17,473,019.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606,631.60 : 30,909,947.40 = 11,648,679.60 : x
  2. Step 2: Convert to fraction form
    20,606,631.60/30,909,947.40 = 11,648,679.60/x
  3. Step 3: Cross multiply
    20,606,631.60x = 30,909,947.40 × 11,648,679.60
  4. Step 4: Simplify right side
    20,606,631.60x = 360,060,073,715,453
  5. Step 5: Solve for x
    x = 360,060,073,715,453/20,606,631.60
  6. Step 6: Final answer
    x = 17,473,019.40

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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.