Home / 789,780,657.60-1,184,670,986.40-402,360,168.60

Finding the Fourth Proportional to 789,780,657.60, 1,184,670,986.40 and 402,360,168.60

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Solution

The fourth proportional to 789,780,657.60, 1,184,670,986.40 and 402,360,168.60 is: 603,540,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,780,657.60 : 1,184,670,986.40 = 402,360,168.60 : x
  2. Step 2: Convert to fraction form
    789,780,657.60/1,184,670,986.40 = 402,360,168.60/x
  3. Step 3: Cross multiply
    789,780,657.60x = 1,184,670,986.40 × 402,360,168.60
  4. Step 4: Simplify right side
    789,780,657.60x = 476,664,417,823,432,384
  5. Step 5: Solve for x
    x = 476,664,417,823,432,384/789,780,657.60
  6. Step 6: Final answer
    x = 603,540,252.90

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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.