Home / 28,638,188.08-39,519,942.30-15,585,166.74

Finding the Fourth Proportional to 28,638,188.08, 39,519,942.30 and 15,585,166.74

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Solution

The fourth proportional to 28,638,188.08, 39,519,942.30 and 15,585,166.74 is: 21,507,118.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,638,188.08 : 39,519,942.30 = 15,585,166.74 : x
  2. Step 2: Convert to fraction form
    28,638,188.08/39,519,942.30 = 15,585,166.74/x
  3. Step 3: Cross multiply
    28,638,188.08x = 39,519,942.30 × 15,585,166.74
  4. Step 4: Simplify right side
    28,638,188.08x = 615,924,890,300,679.12
  5. Step 5: Solve for x
    x = 615,924,890,300,679.12/28,638,188.08
  6. Step 6: Final answer
    x = 21,507,118.00

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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.