Home / 255,455,999.80-383,183,999.70-119,155,161.40

Finding the Fourth Proportional to 255,455,999.80, 383,183,999.70 and 119,155,161.40

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Solution

The fourth proportional to 255,455,999.80, 383,183,999.70 and 119,155,161.40 is: 178,732,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,455,999.80 : 383,183,999.70 = 119,155,161.40 : x
  2. Step 2: Convert to fraction form
    255,455,999.80/383,183,999.70 = 119,155,161.40/x
  3. Step 3: Cross multiply
    255,455,999.80x = 383,183,999.70 × 119,155,161.40
  4. Step 4: Simplify right side
    255,455,999.80x = 45,658,351,330,151,056
  5. Step 5: Solve for x
    x = 45,658,351,330,151,056/255,455,999.80
  6. Step 6: Final answer
    x = 178,732,742.10

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1.5x scale

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.