Home / 1,015,082,878.79-1,522,328,930.93-393,159,398.74

Finding the Fourth Proportional to 1,015,082,878.79, 1,522,328,930.93 and 393,159,398.74

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Solution

The fourth proportional to 1,015,082,878.79, 1,522,328,930.93 and 393,159,398.74 is: 589,624,689.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,082,878.79 : 1,522,328,930.93 = 393,159,398.74 : x
  2. Step 2: Convert to fraction form
    1,015,082,878.79/1,522,328,930.93 = 393,159,398.74/x
  3. Step 3: Cross multiply
    1,015,082,878.79x = 1,522,328,930.93 × 393,159,398.74
  4. Step 4: Simplify right side
    1,015,082,878.79x = 598,517,927,166,122,880
  5. Step 5: Solve for x
    x = 598,517,927,166,122,880/1,015,082,878.79
  6. Step 6: Final answer
    x = 589,624,689.44

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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.