Home / 212,205,548.20-318,355,796.58-64,664,655.28

Finding the Fourth Proportional to 212,205,548.20, 318,355,796.58 and 64,664,655.28

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Solution

The fourth proportional to 212,205,548.20, 318,355,796.58 and 64,664,655.28 is: 97,011,449.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,205,548.20 : 318,355,796.58 = 64,664,655.28 : x
  2. Step 2: Convert to fraction form
    212,205,548.20/318,355,796.58 = 64,664,655.28/x
  3. Step 3: Cross multiply
    212,205,548.20x = 318,355,796.58 × 64,664,655.28
  4. Step 4: Simplify right side
    212,205,548.20x = 20,586,367,842,235,504
  5. Step 5: Solve for x
    x = 20,586,367,842,235,504/212,205,548.20
  6. Step 6: Final answer
    x = 97,011,449.59

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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.