Home / 620,783,958.60-930,840,014.70-257,315,056.20

Finding the Fourth Proportional to 620,783,958.60, 930,840,014.70 and 257,315,056.20

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Solution

The fourth proportional to 620,783,958.60, 930,840,014.70 and 257,315,056.20 is: 385,833,344.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,783,958.60 : 930,840,014.70 = 257,315,056.20 : x
  2. Step 2: Convert to fraction form
    620,783,958.60/930,840,014.70 = 257,315,056.20/x
  3. Step 3: Cross multiply
    620,783,958.60x = 930,840,014.70 × 257,315,056.20
  4. Step 4: Simplify right side
    620,783,958.60x = 239,519,150,695,739,328
  5. Step 5: Solve for x
    x = 239,519,150,695,739,328/620,783,958.60
  6. Step 6: Final answer
    x = 385,833,344.08

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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.