Home / 1,216,430,941.60-1,678,707,753.42-687,874,003.84

Finding the Fourth Proportional to 1,216,430,941.60, 1,678,707,753.42 and 687,874,003.84

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Solution

The fourth proportional to 1,216,430,941.60, 1,678,707,753.42 and 687,874,003.84 is: 949,284,816.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,430,941.60 : 1,678,707,753.42 = 687,874,003.84 : x
  2. Step 2: Convert to fraction form
    1,216,430,941.60/1,678,707,753.42 = 687,874,003.84/x
  3. Step 3: Cross multiply
    1,216,430,941.60x = 1,678,707,753.42 × 687,874,003.84
  4. Step 4: Simplify right side
    1,216,430,941.60x = 1,154,739,423,622,266,880
  5. Step 5: Solve for x
    x = 1,154,739,423,622,266,880/1,216,430,941.60
  6. Step 6: Final answer
    x = 949,284,816.86

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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.