Home / 1,939,862,406.80-2,909,793,610.20-957,759,438.80

Finding the Fourth Proportional to 1,939,862,406.80, 2,909,793,610.20 and 957,759,438.80

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Solution

The fourth proportional to 1,939,862,406.80, 2,909,793,610.20 and 957,759,438.80 is: 1,436,639,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,862,406.80 : 2,909,793,610.20 = 957,759,438.80 : x
  2. Step 2: Convert to fraction form
    1,939,862,406.80/2,909,793,610.20 = 957,759,438.80/x
  3. Step 3: Cross multiply
    1,939,862,406.80x = 2,909,793,610.20 × 957,759,438.80
  4. Step 4: Simplify right side
    1,939,862,406.80x = 2,786,882,295,128,977,408
  5. Step 5: Solve for x
    x = 2,786,882,295,128,977,408/1,939,862,406.80
  6. Step 6: Final answer
    x = 1,436,639,158.20

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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.