Home / 255,303,775.80-382,388,793.30-209,954,143.80

Finding the Fourth Proportional to 255,303,775.80, 382,388,793.30 and 209,954,143.80

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Solution

The fourth proportional to 255,303,775.80, 382,388,793.30 and 209,954,143.80 is: 314,465,038.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,303,775.80 : 382,388,793.30 = 209,954,143.80 : x
  2. Step 2: Convert to fraction form
    255,303,775.80/382,388,793.30 = 209,954,143.80/x
  3. Step 3: Cross multiply
    255,303,775.80x = 382,388,793.30 × 209,954,143.80
  4. Step 4: Simplify right side
    255,303,775.80x = 80,284,111,696,016,688
  5. Step 5: Solve for x
    x = 80,284,111,696,016,688/255,303,775.80
  6. Step 6: Final answer
    x = 314,465,038.54

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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.