Home / 338,255,998.80-507,383,998.20-193,137,176.40

Finding the Fourth Proportional to 338,255,998.80, 507,383,998.20 and 193,137,176.40

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Solution

The fourth proportional to 338,255,998.80, 507,383,998.20 and 193,137,176.40 is: 289,705,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,255,998.80 : 507,383,998.20 = 193,137,176.40 : x
  2. Step 2: Convert to fraction form
    338,255,998.80/507,383,998.20 = 193,137,176.40/x
  3. Step 3: Cross multiply
    338,255,998.80x = 507,383,998.20 × 193,137,176.40
  4. Step 4: Simplify right side
    338,255,998.80x = 97,994,712,762,890,688
  5. Step 5: Solve for x
    x = 97,994,712,762,890,688/338,255,998.80
  6. Step 6: Final answer
    x = 289,705,764.60

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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.