Home / 1,517,131,788,821.90-2,275,831,465,420.60-428,038,315,023.13

Finding the Fourth Proportional to 1,517,131,788,821.90, 2,275,831,465,420.60 and 428,038,315,023.13

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Solution

The fourth proportional to 1,517,131,788,821.90, 2,275,831,465,420.60 and 428,038,315,023.13 is: 642,095,217,378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,131,788,821.90 : 2,275,831,465,420.60 = 428,038,315,023.13 : x
  2. Step 2: Convert to fraction form
    1,517,131,788,821.90/2,275,831,465,420.60 = 428,038,315,023.13/x
  3. Step 3: Cross multiply
    1,517,131,788,821.90x = 2,275,831,465,420.60 × 428,038,315,023.13
  4. Step 4: Simplify right side
    1,517,131,788,821.90x = 974,143,065,735,254,444,605,440
  5. Step 5: Solve for x
    x = 974,143,065,735,254,444,605,440/1,517,131,788,821.90
  6. Step 6: Final answer
    x = 642,095,217,378.38

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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.