Home / 679,968,990.70-1,019,953,486.05-219,953,661.10

Finding the Fourth Proportional to 679,968,990.70, 1,019,953,486.05 and 219,953,661.10

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Solution

The fourth proportional to 679,968,990.70, 1,019,953,486.05 and 219,953,661.10 is: 329,930,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,968,990.70 : 1,019,953,486.05 = 219,953,661.10 : x
  2. Step 2: Convert to fraction form
    679,968,990.70/1,019,953,486.05 = 219,953,661.10/x
  3. Step 3: Cross multiply
    679,968,990.70x = 1,019,953,486.05 × 219,953,661.10
  4. Step 4: Simplify right side
    679,968,990.70x = 224,342,503,408,405,248
  5. Step 5: Solve for x
    x = 224,342,503,408,405,248/679,968,990.70
  6. Step 6: Final answer
    x = 329,930,491.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.