Home / 53,255,029.80-79,882,544.70-20,890,272.90

Finding the Fourth Proportional to 53,255,029.80, 79,882,544.70 and 20,890,272.90

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Solution

The fourth proportional to 53,255,029.80, 79,882,544.70 and 20,890,272.90 is: 31,335,409.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,255,029.80 : 79,882,544.70 = 20,890,272.90 : x
  2. Step 2: Convert to fraction form
    53,255,029.80/79,882,544.70 = 20,890,272.90/x
  3. Step 3: Cross multiply
    53,255,029.80x = 79,882,544.70 × 20,890,272.90
  4. Step 4: Simplify right side
    53,255,029.80x = 1,668,768,158,729,448.50
  5. Step 5: Solve for x
    x = 1,668,768,158,729,448.50/53,255,029.80
  6. Step 6: Final answer
    x = 31,335,409.35

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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.