Home / 839,196,995.20-1,258,795,492.80-512,679,644.80

Finding the Fourth Proportional to 839,196,995.20, 1,258,795,492.80 and 512,679,644.80

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Solution

The fourth proportional to 839,196,995.20, 1,258,795,492.80 and 512,679,644.80 is: 769,019,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,196,995.20 : 1,258,795,492.80 = 512,679,644.80 : x
  2. Step 2: Convert to fraction form
    839,196,995.20/1,258,795,492.80 = 512,679,644.80/x
  3. Step 3: Cross multiply
    839,196,995.20x = 1,258,795,492.80 × 512,679,644.80
  4. Step 4: Simplify right side
    839,196,995.20x = 645,358,826,124,544,896
  5. Step 5: Solve for x
    x = 645,358,826,124,544,896/839,196,995.20
  6. Step 6: Final answer
    x = 769,019,467.20

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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.