Home / 131,618,582.09-181,631,418.69-72,879,986.10

Finding the Fourth Proportional to 131,618,582.09, 181,631,418.69 and 72,879,986.10

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Solution

The fourth proportional to 131,618,582.09, 181,631,418.69 and 72,879,986.10 is: 100,573,149.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,618,582.09 : 181,631,418.69 = 72,879,986.10 : x
  2. Step 2: Convert to fraction form
    131,618,582.09/181,631,418.69 = 72,879,986.10/x
  3. Step 3: Cross multiply
    131,618,582.09x = 181,631,418.69 × 72,879,986.10
  4. Step 4: Simplify right side
    131,618,582.09x = 13,237,295,269,450,478
  5. Step 5: Solve for x
    x = 13,237,295,269,450,478/131,618,582.09
  6. Step 6: Final answer
    x = 100,573,149.01

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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.