Home / 338,303,998.40-507,455,997.60-202,255,102.40

Finding the Fourth Proportional to 338,303,998.40, 507,455,997.60 and 202,255,102.40

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Solution

The fourth proportional to 338,303,998.40, 507,455,997.60 and 202,255,102.40 is: 303,382,653.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,303,998.40 : 507,455,997.60 = 202,255,102.40 : x
  2. Step 2: Convert to fraction form
    338,303,998.40/507,455,997.60 = 202,255,102.40/x
  3. Step 3: Cross multiply
    338,303,998.40x = 507,455,997.60 × 202,255,102.40
  4. Step 4: Simplify right side
    338,303,998.40x = 102,635,564,758,082,160
  5. Step 5: Solve for x
    x = 102,635,564,758,082,160/338,303,998.40
  6. Step 6: Final answer
    x = 303,382,653.60

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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.