Home / 1,517,131,788,822.40-2,275,831,465,421.70-428,038,315,023.94

Finding the Fourth Proportional to 1,517,131,788,822.40, 2,275,831,465,421.70 and 428,038,315,023.94

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Solution

The fourth proportional to 1,517,131,788,822.40, 2,275,831,465,421.70 and 428,038,315,023.94 is: 642,095,217,379.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,131,788,822.40 : 2,275,831,465,421.70 = 428,038,315,023.94 : x
  2. Step 2: Convert to fraction form
    1,517,131,788,822.40/2,275,831,465,421.70 = 428,038,315,023.94/x
  3. Step 3: Cross multiply
    1,517,131,788,822.40x = 2,275,831,465,421.70 × 428,038,315,023.94
  4. Step 4: Simplify right side
    1,517,131,788,822.40x = 974,143,065,737,568,760,889,344
  5. Step 5: Solve for x
    x = 974,143,065,737,568,760,889,344/1,517,131,788,822.40
  6. Step 6: Final answer
    x = 642,095,217,379.70

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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.