Home / 1,517,131,788,836.40-2,275,831,465,442.50-428,038,315,037.80

Finding the Fourth Proportional to 1,517,131,788,836.40, 2,275,831,465,442.50 and 428,038,315,037.80

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Solution

The fourth proportional to 1,517,131,788,836.40, 2,275,831,465,442.50 and 428,038,315,037.80 is: 642,095,217,400.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,131,788,836.40 : 2,275,831,465,442.50 = 428,038,315,037.80 : x
  2. Step 2: Convert to fraction form
    1,517,131,788,836.40/2,275,831,465,442.50 = 428,038,315,037.80/x
  3. Step 3: Cross multiply
    1,517,131,788,836.40x = 2,275,831,465,442.50 × 428,038,315,037.80
  4. Step 4: Simplify right side
    1,517,131,788,836.40x = 974,143,065,778,014,870,568,960
  5. Step 5: Solve for x
    x = 974,143,065,778,014,870,568,960/1,517,131,788,836.40
  6. Step 6: Final answer
    x = 642,095,217,400.43

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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.