Home / 15,587,779.47-21,511,885.42-8,618,328.06

Finding the Fourth Proportional to 15,587,779.47, 21,511,885.42 and 8,618,328.06

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Solution

The fourth proportional to 15,587,779.47, 21,511,885.42 and 8,618,328.06 is: 11,893,707.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,587,779.47 : 21,511,885.42 = 8,618,328.06 : x
  2. Step 2: Convert to fraction form
    15,587,779.47/21,511,885.42 = 8,618,328.06/x
  3. Step 3: Cross multiply
    15,587,779.47x = 21,511,885.42 × 8,618,328.06
  4. Step 4: Simplify right side
    15,587,779.47x = 185,396,485,620,316.12
  5. Step 5: Solve for x
    x = 185,396,485,620,316.12/15,587,779.47
  6. Step 6: Final answer
    x = 11,893,707.25

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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.