Home / 638,479,740.56-881,101,652.24-345,124,308.56

Finding the Fourth Proportional to 638,479,740.56, 881,101,652.24 and 345,124,308.56

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Solution

The fourth proportional to 638,479,740.56, 881,101,652.24 and 345,124,308.56 is: 476,271,335.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,479,740.56 : 881,101,652.24 = 345,124,308.56 : x
  2. Step 2: Convert to fraction form
    638,479,740.56/881,101,652.24 = 345,124,308.56/x
  3. Step 3: Cross multiply
    638,479,740.56x = 881,101,652.24 × 345,124,308.56
  4. Step 4: Simplify right side
    638,479,740.56x = 304,089,598,496,860,864
  5. Step 5: Solve for x
    x = 304,089,598,496,860,864/638,479,740.56
  6. Step 6: Final answer
    x = 476,271,335.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.