Home / 28,539,376.20-39,384,139.40-15,486,303.16

Finding the Fourth Proportional to 28,539,376.20, 39,384,139.40 and 15,486,303.16

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Solution

The fourth proportional to 28,539,376.20, 39,384,139.40 and 15,486,303.16 is: 21,370,989.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539,376.20 : 39,384,139.40 = 15,486,303.16 : x
  2. Step 2: Convert to fraction form
    28,539,376.20/39,384,139.40 = 15,486,303.16/x
  3. Step 3: Cross multiply
    28,539,376.20x = 39,384,139.40 × 15,486,303.16
  4. Step 4: Simplify right side
    28,539,376.20x = 609,914,722,444,100.50
  5. Step 5: Solve for x
    x = 609,914,722,444,100.50/28,539,376.20
  6. Step 6: Final answer
    x = 21,370,989.97

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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.