Home / 1,517,131,788,828.70-2,275,831,465,431.40-428,038,315,030.20

Finding the Fourth Proportional to 1,517,131,788,828.70, 2,275,831,465,431.40 and 428,038,315,030.20

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Solution

The fourth proportional to 1,517,131,788,828.70, 2,275,831,465,431.40 and 428,038,315,030.20 is: 642,095,217,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,131,788,828.70 : 2,275,831,465,431.40 = 428,038,315,030.20 : x
  2. Step 2: Convert to fraction form
    1,517,131,788,828.70/2,275,831,465,431.40 = 428,038,315,030.20/x
  3. Step 3: Cross multiply
    1,517,131,788,828.70x = 2,275,831,465,431.40 × 428,038,315,030.20
  4. Step 4: Simplify right side
    1,517,131,788,828.70x = 974,143,065,755,967,327,043,584
  5. Step 5: Solve for x
    x = 974,143,065,755,967,327,043,584/1,517,131,788,828.70
  6. Step 6: Final answer
    x = 642,095,217,389.16

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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.