Home / 780,052,284.40-1,170,078,426.60-262,310,652.40

Finding the Fourth Proportional to 780,052,284.40, 1,170,078,426.60 and 262,310,652.40

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Solution

The fourth proportional to 780,052,284.40, 1,170,078,426.60 and 262,310,652.40 is: 393,465,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,052,284.40 : 1,170,078,426.60 = 262,310,652.40 : x
  2. Step 2: Convert to fraction form
    780,052,284.40/1,170,078,426.60 = 262,310,652.40/x
  3. Step 3: Cross multiply
    780,052,284.40x = 1,170,078,426.60 × 262,310,652.40
  4. Step 4: Simplify right side
    780,052,284.40x = 306,924,035,440,611,520
  5. Step 5: Solve for x
    x = 306,924,035,440,611,520/780,052,284.40
  6. Step 6: Final answer
    x = 393,465,978.60

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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.