Home / 1,517,131,788,829.70-2,275,831,465,432.60-428,038,315,031.30

Finding the Fourth Proportional to 1,517,131,788,829.70, 2,275,831,465,432.60 and 428,038,315,031.30

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Solution

The fourth proportional to 1,517,131,788,829.70, 2,275,831,465,432.60 and 428,038,315,031.30 is: 642,095,217,390.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517,131,788,829.70 : 2,275,831,465,432.60 = 428,038,315,031.30 : x
  2. Step 2: Convert to fraction form
    1,517,131,788,829.70/2,275,831,465,432.60 = 428,038,315,031.30/x
  3. Step 3: Cross multiply
    1,517,131,788,829.70x = 2,275,831,465,432.60 × 428,038,315,031.30
  4. Step 4: Simplify right side
    1,517,131,788,829.70x = 974,143,065,758,984,407,351,296
  5. Step 5: Solve for x
    x = 974,143,065,758,984,407,351,296/1,517,131,788,829.70
  6. Step 6: Final answer
    x = 642,095,217,390.72

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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.