Home / 15,702,016.08-21,666,141.18-8,731,779.78

Finding the Fourth Proportional to 15,702,016.08, 21,666,141.18 and 8,731,779.78

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Solution

The fourth proportional to 15,702,016.08, 21,666,141.18 and 8,731,779.78 is: 12,048,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,702,016.08 : 21,666,141.18 = 8,731,779.78 : x
  2. Step 2: Convert to fraction form
    15,702,016.08/21,666,141.18 = 8,731,779.78/x
  3. Step 3: Cross multiply
    15,702,016.08x = 21,666,141.18 × 8,731,779.78
  4. Step 4: Simplify right side
    15,702,016.08x = 189,183,973,466,149.31
  5. Step 5: Solve for x
    x = 189,183,973,466,149.31/15,702,016.08
  6. Step 6: Final answer
    x = 12,048,387.45

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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.