Home / 437,018,718.15-655,528,077.23-389,401,604.55

Finding the Fourth Proportional to 437,018,718.15, 655,528,077.23 and 389,401,604.55

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Solution

The fourth proportional to 437,018,718.15, 655,528,077.23 and 389,401,604.55 is: 584,102,406.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,018,718.15 : 655,528,077.23 = 389,401,604.55 : x
  2. Step 2: Convert to fraction form
    437,018,718.15/655,528,077.23 = 389,401,604.55/x
  3. Step 3: Cross multiply
    437,018,718.15x = 655,528,077.23 × 389,401,604.55
  4. Step 4: Simplify right side
    437,018,718.15x = 255,263,685,098,991,328
  5. Step 5: Solve for x
    x = 255,263,685,098,991,328/437,018,718.15
  6. Step 6: Final answer
    x = 584,102,406.83

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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.