Home / 15,779,835-21,775,958.19-8,810,619.69

Finding the Fourth Proportional to 15,779,835, 21,775,958.19 and 8,810,619.69

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Solution

The fourth proportional to 15,779,835, 21,775,958.19 and 8,810,619.69 is: 12,158,535.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779,835 : 21,775,958.19 = 8,810,619.69 : x
  2. Step 2: Convert to fraction form
    15,779,835/21,775,958.19 = 8,810,619.69/x
  3. Step 3: Cross multiply
    15,779,835x = 21,775,958.19 × 8,810,619.69
  4. Step 4: Simplify right side
    15,779,835x = 191,859,685,997,430.75
  5. Step 5: Solve for x
    x = 191,859,685,997,430.75/15,779,835
  6. Step 6: Final answer
    x = 12,158,535.62

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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.