Home / 269,476,345.45-371,879,580.90-148,778,221.15

Finding the Fourth Proportional to 269,476,345.45, 371,879,580.90 and 148,778,221.15

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Solution

The fourth proportional to 269,476,345.45, 371,879,580.90 and 148,778,221.15 is: 205,315,173.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,476,345.45 : 371,879,580.90 = 148,778,221.15 : x
  2. Step 2: Convert to fraction form
    269,476,345.45/371,879,580.90 = 148,778,221.15/x
  3. Step 3: Cross multiply
    269,476,345.45x = 371,879,580.90 × 148,778,221.15
  4. Step 4: Simplify right side
    269,476,345.45x = 55,327,582,528,309,512
  5. Step 5: Solve for x
    x = 55,327,582,528,309,512/269,476,345.45
  6. Step 6: Final answer
    x = 205,315,173.16

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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.