Home / 378,317,738.54-522,078,703.08-211,054,000.52

Finding the Fourth Proportional to 378,317,738.54, 522,078,703.08 and 211,054,000.52

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Solution

The fourth proportional to 378,317,738.54, 522,078,703.08 and 211,054,000.52 is: 291,254,645.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,317,738.54 : 522,078,703.08 = 211,054,000.52 : x
  2. Step 2: Convert to fraction form
    378,317,738.54/522,078,703.08 = 211,054,000.52/x
  3. Step 3: Cross multiply
    378,317,738.54x = 522,078,703.08 × 211,054,000.52
  4. Step 4: Simplify right side
    378,317,738.54x = 110,186,798,871,327,248
  5. Step 5: Solve for x
    x = 110,186,798,871,327,248/378,317,738.54
  6. Step 6: Final answer
    x = 291,254,645.62

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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.