Home / 18,947,239.74-28,409,980.77-7,419,209.85

Finding the Fourth Proportional to 18,947,239.74, 28,409,980.77 and 7,419,209.85

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Solution

The fourth proportional to 18,947,239.74, 28,409,980.77 and 7,419,209.85 is: 11,124,554.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947,239.74 : 28,409,980.77 = 7,419,209.85 : x
  2. Step 2: Convert to fraction form
    18,947,239.74/28,409,980.77 = 7,419,209.85/x
  3. Step 3: Cross multiply
    18,947,239.74x = 28,409,980.77 × 7,419,209.85
  4. Step 4: Simplify right side
    18,947,239.74x = 210,779,609,167,094.56
  5. Step 5: Solve for x
    x = 210,779,609,167,094.56/18,947,239.74
  6. Step 6: Final answer
    x = 11,124,554.93

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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.