Home / 620,784,017.10-930,840,102.45-257,315,114.70

Finding the Fourth Proportional to 620,784,017.10, 930,840,102.45 and 257,315,114.70

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Solution

The fourth proportional to 620,784,017.10, 930,840,102.45 and 257,315,114.70 is: 385,833,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,784,017.10 : 930,840,102.45 = 257,315,114.70 : x
  2. Step 2: Convert to fraction form
    620,784,017.10/930,840,102.45 = 257,315,114.70/x
  3. Step 3: Cross multiply
    620,784,017.10x = 930,840,102.45 × 257,315,114.70
  4. Step 4: Simplify right side
    620,784,017.10x = 239,519,227,729,281,504
  5. Step 5: Solve for x
    x = 239,519,227,729,281,504/620,784,017.10
  6. Step 6: Final answer
    x = 385,833,431.81

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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.