Home / 928,626,401.88-1,393,812,315.60-486,286,576.68

Finding the Fourth Proportional to 928,626,401.88, 1,393,812,315.60 and 486,286,576.68

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Solution

The fourth proportional to 928,626,401.88, 1,393,812,315.60 and 486,286,576.68 is: 729,886,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,626,401.88 : 1,393,812,315.60 = 486,286,576.68 : x
  2. Step 2: Convert to fraction form
    928,626,401.88/1,393,812,315.60 = 486,286,576.68/x
  3. Step 3: Cross multiply
    928,626,401.88x = 1,393,812,315.60 × 486,286,576.68
  4. Step 4: Simplify right side
    928,626,401.88x = 677,792,219,487,547,776
  5. Step 5: Solve for x
    x = 677,792,219,487,547,776/928,626,401.88
  6. Step 6: Final answer
    x = 729,886,871.74

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1.5x scale

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.