Home / 30,833,011.20-42,481,037.88-20,360,430.48

Finding the Fourth Proportional to 30,833,011.20, 42,481,037.88 and 20,360,430.48

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Solution

The fourth proportional to 30,833,011.20, 42,481,037.88 and 20,360,430.48 is: 28,052,148.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,833,011.20 : 42,481,037.88 = 20,360,430.48 : x
  2. Step 2: Convert to fraction form
    30,833,011.20/42,481,037.88 = 20,360,430.48/x
  3. Step 3: Cross multiply
    30,833,011.20x = 42,481,037.88 × 20,360,430.48
  4. Step 4: Simplify right side
    30,833,011.20x = 864,932,218,473,986.62
  5. Step 5: Solve for x
    x = 864,932,218,473,986.62/30,833,011.20
  6. Step 6: Final answer
    x = 28,052,148.81

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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.