Home / 418,419,057.08-578,214,652.29-313,815,525.05

Finding the Fourth Proportional to 418,419,057.08, 578,214,652.29 and 313,815,525.05

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Solution

The fourth proportional to 418,419,057.08, 578,214,652.29 and 313,815,525.05 is: 433,662,692.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,419,057.08 : 578,214,652.29 = 313,815,525.05 : x
  2. Step 2: Convert to fraction form
    418,419,057.08/578,214,652.29 = 313,815,525.05/x
  3. Step 3: Cross multiply
    418,419,057.08x = 578,214,652.29 × 313,815,525.05
  4. Step 4: Simplify right side
    418,419,057.08x = 181,452,734,700,258,272
  5. Step 5: Solve for x
    x = 181,452,734,700,258,272/418,419,057.08
  6. Step 6: Final answer
    x = 433,662,692.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.