Home / 317,771,012.70-438,560,737.80-185,645,037

Finding the Fourth Proportional to 317,771,012.70, 438,560,737.80 and 185,645,037

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Solution

The fourth proportional to 317,771,012.70, 438,560,737.80 and 185,645,037 is: 256,211,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,771,012.70 : 438,560,737.80 = 185,645,037 : x
  2. Step 2: Convert to fraction form
    317,771,012.70/438,560,737.80 = 185,645,037/x
  3. Step 3: Cross multiply
    317,771,012.70x = 438,560,737.80 × 185,645,037
  4. Step 4: Simplify right side
    317,771,012.70x = 81,416,624,395,628,304
  5. Step 5: Solve for x
    x = 81,416,624,395,628,304/317,771,012.70
  6. Step 6: Final answer
    x = 256,211,615.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.