Home / 331,776,280.40-497,664,420.60-311,604,299.60

Finding the Fourth Proportional to 331,776,280.40, 497,664,420.60 and 311,604,299.60

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Solution

The fourth proportional to 331,776,280.40, 497,664,420.60 and 311,604,299.60 is: 467,406,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,776,280.40 : 497,664,420.60 = 311,604,299.60 : x
  2. Step 2: Convert to fraction form
    331,776,280.40/497,664,420.60 = 311,604,299.60/x
  3. Step 3: Cross multiply
    331,776,280.40x = 497,664,420.60 × 311,604,299.60
  4. Step 4: Simplify right side
    331,776,280.40x = 155,074,373,216,902,816
  5. Step 5: Solve for x
    x = 155,074,373,216,902,816/331,776,280.40
  6. Step 6: Final answer
    x = 467,406,449.40

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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.