Home / 57,008,871.68-78,672,347.89-30,903,308.78

Finding the Fourth Proportional to 57,008,871.68, 78,672,347.89 and 30,903,308.78

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Solution

The fourth proportional to 57,008,871.68, 78,672,347.89 and 30,903,308.78 is: 42,646,623.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008,871.68 : 78,672,347.89 = 30,903,308.78 : x
  2. Step 2: Convert to fraction form
    57,008,871.68/78,672,347.89 = 30,903,308.78/x
  3. Step 3: Cross multiply
    57,008,871.68x = 78,672,347.89 × 30,903,308.78
  4. Step 4: Simplify right side
    57,008,871.68x = 2,431,235,858,821,631.50
  5. Step 5: Solve for x
    x = 2,431,235,858,821,631.50/57,008,871.68
  6. Step 6: Final answer
    x = 42,646,623.01

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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.