Home / 1,517,131,788,828.70-2,275,831,465,431.50-428,038,315,030.21

Finding the Fourth Proportional to 1,517,131,788,828.70, 2,275,831,465,431.50 and 428,038,315,030.21

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Solution

The fourth proportional to 1,517,131,788,828.70, 2,275,831,465,431.50 and 428,038,315,030.21 is: 642,095,217,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,131,788,828.70 : 2,275,831,465,431.50 = 428,038,315,030.21 : x
  2. Step 2: Convert to fraction form
    1,517,131,788,828.70/2,275,831,465,431.50 = 428,038,315,030.21/x
  3. Step 3: Cross multiply
    1,517,131,788,828.70x = 2,275,831,465,431.50 × 428,038,315,030.21
  4. Step 4: Simplify right side
    1,517,131,788,828.70x = 974,143,065,756,032,959,512,576
  5. Step 5: Solve for x
    x = 974,143,065,756,032,959,512,576/1,517,131,788,828.70
  6. Step 6: Final answer
    x = 642,095,217,389.20

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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.