Home / 639,374,882.72-882,337,327.44-346,019,450.72

Finding the Fourth Proportional to 639,374,882.72, 882,337,327.44 and 346,019,450.72

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Solution

The fourth proportional to 639,374,882.72, 882,337,327.44 and 346,019,450.72 is: 477,506,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,374,882.72 : 882,337,327.44 = 346,019,450.72 : x
  2. Step 2: Convert to fraction form
    639,374,882.72/882,337,327.44 = 346,019,450.72/x
  3. Step 3: Cross multiply
    639,374,882.72x = 882,337,327.44 × 346,019,450.72
  4. Step 4: Simplify right side
    639,374,882.72x = 305,305,877,390,541,632
  5. Step 5: Solve for x
    x = 305,305,877,390,541,632/639,374,882.72
  6. Step 6: Final answer
    x = 477,506,836.20

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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.