Home / 28,084,779.08-42,128,611.92-7,891,595.72

Finding the Fourth Proportional to 28,084,779.08, 42,128,611.92 and 7,891,595.72

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Solution

The fourth proportional to 28,084,779.08, 42,128,611.92 and 7,891,595.72 is: 11,837,799.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084,779.08 : 42,128,611.92 = 7,891,595.72 : x
  2. Step 2: Convert to fraction form
    28,084,779.08/42,128,611.92 = 7,891,595.72/x
  3. Step 3: Cross multiply
    28,084,779.08x = 42,128,611.92 × 7,891,595.72
  4. Step 4: Simplify right side
    28,084,779.08x = 332,461,973,517,413
  5. Step 5: Solve for x
    x = 332,461,973,517,413/28,084,779.08
  6. Step 6: Final answer
    x = 11,837,799.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.