Home / 209,686,311.96-314,461,012.62-69,589,136.47

Finding the Fourth Proportional to 209,686,311.96, 314,461,012.62 and 69,589,136.47

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Solution

The fourth proportional to 209,686,311.96, 314,461,012.62 and 69,589,136.47 is: 104,360,986.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,686,311.96 : 314,461,012.62 = 69,589,136.47 : x
  2. Step 2: Convert to fraction form
    209,686,311.96/314,461,012.62 = 69,589,136.47/x
  3. Step 3: Cross multiply
    209,686,311.96x = 314,461,012.62 × 69,589,136.47
  4. Step 4: Simplify right side
    209,686,311.96x = 21,883,070,320,887,412
  5. Step 5: Solve for x
    x = 21,883,070,320,887,412/209,686,311.96
  6. Step 6: Final answer
    x = 104,360,986.26

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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.