Home / 1,517,131,788,838.80-2,275,831,465,446.20-428,038,315,040.10

Finding the Fourth Proportional to 1,517,131,788,838.80, 2,275,831,465,446.20 and 428,038,315,040.10

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Solution

The fourth proportional to 1,517,131,788,838.80, 2,275,831,465,446.20 and 428,038,315,040.10 is: 642,095,217,403.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,131,788,838.80 : 2,275,831,465,446.20 = 428,038,315,040.10 : x
  2. Step 2: Convert to fraction form
    1,517,131,788,838.80/2,275,831,465,446.20 = 428,038,315,040.10/x
  3. Step 3: Cross multiply
    1,517,131,788,838.80x = 2,275,831,465,446.20 × 428,038,315,040.10
  4. Step 4: Simplify right side
    1,517,131,788,838.80x = 974,143,065,784,832,996,933,632
  5. Step 5: Solve for x
    x = 974,143,065,784,832,996,933,632/1,517,131,788,838.80
  6. Step 6: Final answer
    x = 642,095,217,403.91

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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.