Home / 1,517,131,788,827.70-2,275,831,465,429.10-428,038,315,029.05

Finding the Fourth Proportional to 1,517,131,788,827.70, 2,275,831,465,429.10 and 428,038,315,029.05

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Solution

The fourth proportional to 1,517,131,788,827.70, 2,275,831,465,429.10 and 428,038,315,029.05 is: 642,095,217,387.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,131,788,827.70 : 2,275,831,465,429.10 = 428,038,315,029.05 : x
  2. Step 2: Convert to fraction form
    1,517,131,788,827.70/2,275,831,465,429.10 = 428,038,315,029.05/x
  3. Step 3: Cross multiply
    1,517,131,788,827.70x = 2,275,831,465,429.10 × 428,038,315,029.05
  4. Step 4: Simplify right side
    1,517,131,788,827.70x = 974,143,065,752,365,594,312,704
  5. Step 5: Solve for x
    x = 974,143,065,752,365,594,312,704/1,517,131,788,827.70
  6. Step 6: Final answer
    x = 642,095,217,387.21

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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.