Home / 28,779,798.71-39,720,172.56-18,322,474.44

Finding the Fourth Proportional to 28,779,798.71, 39,720,172.56 and 18,322,474.44

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Solution

The fourth proportional to 28,779,798.71, 39,720,172.56 and 18,322,474.44 is: 25,287,593.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779,798.71 : 39,720,172.56 = 18,322,474.44 : x
  2. Step 2: Convert to fraction form
    28,779,798.71/39,720,172.56 = 18,322,474.44/x
  3. Step 3: Cross multiply
    28,779,798.71x = 39,720,172.56 × 18,322,474.44
  4. Step 4: Simplify right side
    28,779,798.71x = 727,771,846,482,989.50
  5. Step 5: Solve for x
    x = 727,771,846,482,989.50/28,779,798.71
  6. Step 6: Final answer
    x = 25,287,593.35

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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.