Home / 1,517,131,788,828.10-2,275,831,465,429.80-428,038,315,029.55

Finding the Fourth Proportional to 1,517,131,788,828.10, 2,275,831,465,429.80 and 428,038,315,029.55

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Solution

The fourth proportional to 1,517,131,788,828.10, 2,275,831,465,429.80 and 428,038,315,029.55 is: 642,095,217,387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,131,788,828.10 : 2,275,831,465,429.80 = 428,038,315,029.55 : x
  2. Step 2: Convert to fraction form
    1,517,131,788,828.10/2,275,831,465,429.80 = 428,038,315,029.55/x
  3. Step 3: Cross multiply
    1,517,131,788,828.10x = 2,275,831,465,429.80 × 428,038,315,029.55
  4. Step 4: Simplify right side
    1,517,131,788,828.10x = 974,143,065,753,803,066,179,584
  5. Step 5: Solve for x
    x = 974,143,065,753,803,066,179,584/1,517,131,788,828.10
  6. Step 6: Final answer
    x = 642,095,217,387.99

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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.