Home / 338,255,999.80-507,383,999.70-193,137,177.40

Finding the Fourth Proportional to 338,255,999.80, 507,383,999.70 and 193,137,177.40

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Solution

The fourth proportional to 338,255,999.80, 507,383,999.70 and 193,137,177.40 is: 289,705,766.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,255,999.80 : 507,383,999.70 = 193,137,177.40 : x
  2. Step 2: Convert to fraction form
    338,255,999.80/507,383,999.70 = 193,137,177.40/x
  3. Step 3: Cross multiply
    338,255,999.80x = 507,383,999.70 × 193,137,177.40
  4. Step 4: Simplify right side
    338,255,999.80x = 97,994,713,559,980,448
  5. Step 5: Solve for x
    x = 97,994,713,559,980,448/338,255,999.80
  6. Step 6: Final answer
    x = 289,705,766.10

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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.