Home / 1,939,368,508.20-2,909,052,800.78-465,508,317.11

Finding the Fourth Proportional to 1,939,368,508.20, 2,909,052,800.78 and 465,508,317.11

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Solution

The fourth proportional to 1,939,368,508.20, 2,909,052,800.78 and 465,508,317.11 is: 698,262,484.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,368,508.20 : 2,909,052,800.78 = 465,508,317.11 : x
  2. Step 2: Convert to fraction form
    1,939,368,508.20/2,909,052,800.78 = 465,508,317.11/x
  3. Step 3: Cross multiply
    1,939,368,508.20x = 2,909,052,800.78 × 465,508,317.11
  4. Step 4: Simplify right side
    1,939,368,508.20x = 1,354,188,273,658,357,248
  5. Step 5: Solve for x
    x = 1,354,188,273,658,357,248/1,939,368,508.20
  6. Step 6: Final answer
    x = 698,262,484.89

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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.