Home / 57,008,877.30-78,672,355.67-30,903,314.40

Finding the Fourth Proportional to 57,008,877.30, 78,672,355.67 and 30,903,314.40

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Solution

The fourth proportional to 57,008,877.30, 78,672,355.67 and 30,903,314.40 is: 42,646,630.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008,877.30 : 78,672,355.67 = 30,903,314.40 : x
  2. Step 2: Convert to fraction form
    57,008,877.30/78,672,355.67 = 30,903,314.40/x
  3. Step 3: Cross multiply
    57,008,877.30x = 78,672,355.67 × 30,903,314.40
  4. Step 4: Simplify right side
    57,008,877.30x = 2,431,236,541,935,891
  5. Step 5: Solve for x
    x = 2,431,236,541,935,891/57,008,877.30
  6. Step 6: Final answer
    x = 42,646,630.79

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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.