Home / 862,435,612.80-1,293,653,419.20-317,064,297.60

Finding the Fourth Proportional to 862,435,612.80, 1,293,653,419.20 and 317,064,297.60

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Solution

The fourth proportional to 862,435,612.80, 1,293,653,419.20 and 317,064,297.60 is: 475,596,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,435,612.80 : 1,293,653,419.20 = 317,064,297.60 : x
  2. Step 2: Convert to fraction form
    862,435,612.80/1,293,653,419.20 = 317,064,297.60/x
  3. Step 3: Cross multiply
    862,435,612.80x = 1,293,653,419.20 × 317,064,297.60
  4. Step 4: Simplify right side
    862,435,612.80x = 410,171,312,696,486,400
  5. Step 5: Solve for x
    x = 410,171,312,696,486,400/862,435,612.80
  6. Step 6: Final answer
    x = 475,596,446.40

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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.