Home / 945,133,083.60-1,415,432,143.80-459,892,021.20

Finding the Fourth Proportional to 945,133,083.60, 1,415,432,143.80 and 459,892,021.20

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Solution

The fourth proportional to 945,133,083.60, 1,415,432,143.80 and 459,892,021.20 is: 688,734,698.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,133,083.60 : 1,415,432,143.80 = 459,892,021.20 : x
  2. Step 2: Convert to fraction form
    945,133,083.60/1,415,432,143.80 = 459,892,021.20/x
  3. Step 3: Cross multiply
    945,133,083.60x = 1,415,432,143.80 × 459,892,021.20
  4. Step 4: Simplify right side
    945,133,083.60x = 650,945,949,483,630,976
  5. Step 5: Solve for x
    x = 650,945,949,483,630,976/945,133,083.60
  6. Step 6: Final answer
    x = 688,734,698.61

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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.