Home / 20,493,255.10-30,720,965.70-10,249,200.69

Finding the Fourth Proportional to 20,493,255.10, 30,720,965.70 and 10,249,200.69

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Solution

The fourth proportional to 20,493,255.10, 30,720,965.70 and 10,249,200.69 is: 15,364,340.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,493,255.10 : 30,720,965.70 = 10,249,200.69 : x
  2. Step 2: Convert to fraction form
    20,493,255.10/30,720,965.70 = 10,249,200.69/x
  3. Step 3: Cross multiply
    20,493,255.10x = 30,720,965.70 × 10,249,200.69
  4. Step 4: Simplify right side
    20,493,255.10x = 314,865,342,798,660.31
  5. Step 5: Solve for x
    x = 314,865,342,798,660.31/20,493,255.10
  6. Step 6: Final answer
    x = 15,364,340.19

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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.