Home / 1,783,975,048.20-2,675,130,374.52-678,785,620.68

Finding the Fourth Proportional to 1,783,975,048.20, 2,675,130,374.52 and 678,785,620.68

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Solution

The fourth proportional to 1,783,975,048.20, 2,675,130,374.52 and 678,785,620.68 is: 1,017,861,787.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,783,975,048.20 : 2,675,130,374.52 = 678,785,620.68 : x
  2. Step 2: Convert to fraction form
    1,783,975,048.20/2,675,130,374.52 = 678,785,620.68/x
  3. Step 3: Cross multiply
    1,783,975,048.20x = 2,675,130,374.52 × 678,785,620.68
  4. Step 4: Simplify right side
    1,783,975,048.20x = 1,815,840,031,668,478,976
  5. Step 5: Solve for x
    x = 1,815,840,031,668,478,976/1,783,975,048.20
  6. Step 6: Final answer
    x = 1,017,861,787.64

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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.