Home / 6,779,363.74-10,169,128.38-1,987,149.90

Finding the Fourth Proportional to 6,779,363.74, 10,169,128.38 and 1,987,149.90

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Solution

The fourth proportional to 6,779,363.74, 10,169,128.38 and 1,987,149.90 is: 2,980,749.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779,363.74 : 10,169,128.38 = 1,987,149.90 : x
  2. Step 2: Convert to fraction form
    6,779,363.74/10,169,128.38 = 1,987,149.90/x
  3. Step 3: Cross multiply
    6,779,363.74x = 10,169,128.38 × 1,987,149.90
  4. Step 4: Simplify right side
    6,779,363.74x = 20,207,582,477,812.49
  5. Step 5: Solve for x
    x = 20,207,582,477,812.49/6,779,363.74
  6. Step 6: Final answer
    x = 2,980,749.12

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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.