Home / 28,651,201.55-42,882,323.92-20,148,145.55

Finding the Fourth Proportional to 28,651,201.55, 42,882,323.92 and 20,148,145.55

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Solution

The fourth proportional to 28,651,201.55, 42,882,323.92 and 20,148,145.55 is: 30,155,779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,651,201.55 : 42,882,323.92 = 20,148,145.55 : x
  2. Step 2: Convert to fraction form
    28,651,201.55/42,882,323.92 = 20,148,145.55/x
  3. Step 3: Cross multiply
    28,651,201.55x = 42,882,323.92 × 20,148,145.55
  4. Step 4: Simplify right side
    28,651,201.55x = 863,999,303,862,406.62
  5. Step 5: Solve for x
    x = 863,999,303,862,406.62/28,651,201.55
  6. Step 6: Final answer
    x = 30,155,779.06

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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.