Home / 1,517,131,788,826.70-2,275,831,465,428.40-428,038,315,028.21

Finding the Fourth Proportional to 1,517,131,788,826.70, 2,275,831,465,428.40 and 428,038,315,028.21

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Solution

The fourth proportional to 1,517,131,788,826.70, 2,275,831,465,428.40 and 428,038,315,028.21 is: 642,095,217,386.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,131,788,826.70 : 2,275,831,465,428.40 = 428,038,315,028.21 : x
  2. Step 2: Convert to fraction form
    1,517,131,788,826.70/2,275,831,465,428.40 = 428,038,315,028.21/x
  3. Step 3: Cross multiply
    1,517,131,788,826.70x = 2,275,831,465,428.40 × 428,038,315,028.21
  4. Step 4: Simplify right side
    1,517,131,788,826.70x = 974,143,065,750,154,357,243,904
  5. Step 5: Solve for x
    x = 974,143,065,750,154,357,243,904/1,517,131,788,826.70
  6. Step 6: Final answer
    x = 642,095,217,386.17

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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.