Home / 268,145,320.80-402,217,981.20-106,587,256.80

Finding the Fourth Proportional to 268,145,320.80, 402,217,981.20 and 106,587,256.80

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Solution

The fourth proportional to 268,145,320.80, 402,217,981.20 and 106,587,256.80 is: 159,880,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,145,320.80 : 402,217,981.20 = 106,587,256.80 : x
  2. Step 2: Convert to fraction form
    268,145,320.80/402,217,981.20 = 106,587,256.80/x
  3. Step 3: Cross multiply
    268,145,320.80x = 402,217,981.20 × 106,587,256.80
  4. Step 4: Simplify right side
    268,145,320.80x = 42,871,311,251,741,968
  5. Step 5: Solve for x
    x = 42,871,311,251,741,968/268,145,320.80
  6. Step 6: Final answer
    x = 159,880,885.20

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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.