Home / 1,288,363,917.15-1,932,401,153.43-355,819,337.91

Finding the Fourth Proportional to 1,288,363,917.15, 1,932,401,153.43 and 355,819,337.91

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Solution

The fourth proportional to 1,288,363,917.15, 1,932,401,153.43 and 355,819,337.91 is: 533,689,037.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,363,917.15 : 1,932,401,153.43 = 355,819,337.91 : x
  2. Step 2: Convert to fraction form
    1,288,363,917.15/1,932,401,153.43 = 355,819,337.91/x
  3. Step 3: Cross multiply
    1,288,363,917.15x = 1,932,401,153.43 × 355,819,337.91
  4. Step 4: Simplify right side
    1,288,363,917.15x = 687,585,698,989,982,976
  5. Step 5: Solve for x
    x = 687,585,698,989,982,976/1,288,363,917.15
  6. Step 6: Final answer
    x = 533,689,037.57

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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.