Home / 1,517,131,788,837.30-2,275,831,465,443.90-428,038,315,038.60

Finding the Fourth Proportional to 1,517,131,788,837.30, 2,275,831,465,443.90 and 428,038,315,038.60

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Solution

The fourth proportional to 1,517,131,788,837.30, 2,275,831,465,443.90 and 428,038,315,038.60 is: 642,095,217,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,131,788,837.30 : 2,275,831,465,443.90 = 428,038,315,038.60 : x
  2. Step 2: Convert to fraction form
    1,517,131,788,837.30/2,275,831,465,443.90 = 428,038,315,038.60/x
  3. Step 3: Cross multiply
    1,517,131,788,837.30x = 2,275,831,465,443.90 × 428,038,315,038.60
  4. Step 4: Simplify right side
    1,517,131,788,837.30x = 974,143,065,780,434,681,987,072
  5. Step 5: Solve for x
    x = 974,143,065,780,434,681,987,072/1,517,131,788,837.30
  6. Step 6: Final answer
    x = 642,095,217,401.65

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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.