Home / 396,815,002.12-547,871,921.76-354,868,925.32

Finding the Fourth Proportional to 396,815,002.12, 547,871,921.76 and 354,868,925.32

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Solution

The fourth proportional to 396,815,002.12, 547,871,921.76 and 354,868,925.32 is: 489,958,088.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,815,002.12 : 547,871,921.76 = 354,868,925.32 : x
  2. Step 2: Convert to fraction form
    396,815,002.12/547,871,921.76 = 354,868,925.32/x
  3. Step 3: Cross multiply
    396,815,002.12x = 547,871,921.76 × 354,868,925.32
  4. Step 4: Simplify right side
    396,815,002.12x = 194,422,720,087,974,304
  5. Step 5: Solve for x
    x = 194,422,720,087,974,304/396,815,002.12
  6. Step 6: Final answer
    x = 489,958,088.91

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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.