Home / 10,779,984.60-16,169,976.90-5,111,280.60

Finding the Fourth Proportional to 10,779,984.60, 16,169,976.90 and 5,111,280.60

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Solution

The fourth proportional to 10,779,984.60, 16,169,976.90 and 5,111,280.60 is: 7,666,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779,984.60 : 16,169,976.90 = 5,111,280.60 : x
  2. Step 2: Convert to fraction form
    10,779,984.60/16,169,976.90 = 5,111,280.60/x
  3. Step 3: Cross multiply
    10,779,984.60x = 16,169,976.90 × 5,111,280.60
  4. Step 4: Simplify right side
    10,779,984.60x = 82,649,289,231,418.14
  5. Step 5: Solve for x
    x = 82,649,289,231,418.14/10,779,984.60
  6. Step 6: Final answer
    x = 7,666,920.90

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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.