Home / 208,782,495-288,087,814.70-120,659,475.54

Finding the Fourth Proportional to 208,782,495, 288,087,814.70 and 120,659,475.54

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Solution

The fourth proportional to 208,782,495, 288,087,814.70 and 120,659,475.54 is: 166,491,566.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,782,495 : 288,087,814.70 = 120,659,475.54 : x
  2. Step 2: Convert to fraction form
    208,782,495/288,087,814.70 = 120,659,475.54/x
  3. Step 3: Cross multiply
    208,782,495x = 288,087,814.70 × 120,659,475.54
  4. Step 4: Simplify right side
    208,782,495x = 34,760,524,631,166,704
  5. Step 5: Solve for x
    x = 34,760,524,631,166,704/208,782,495
  6. Step 6: Final answer
    x = 166,491,566.41

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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.