Home / 379,135,209-523,207,300.26-211,871,471.40

Finding the Fourth Proportional to 379,135,209, 523,207,300.26 and 211,871,471.40

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Solution

The fourth proportional to 379,135,209, 523,207,300.26 and 211,871,471.40 is: 292,383,028.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,135,209 : 523,207,300.26 = 211,871,471.40 : x
  2. Step 2: Convert to fraction form
    379,135,209/523,207,300.26 = 211,871,471.40/x
  3. Step 3: Cross multiply
    379,135,209x = 523,207,300.26 × 211,871,471.40
  4. Step 4: Simplify right side
    379,135,209x = 110,852,700,553,307,808
  5. Step 5: Solve for x
    x = 110,852,700,553,307,808/379,135,209
  6. Step 6: Final answer
    x = 292,383,028.33

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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.