Home / 259,678,348.23-389,541,467.75-84,802,298.76

Finding the Fourth Proportional to 259,678,348.23, 389,541,467.75 and 84,802,298.76

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Solution

The fourth proportional to 259,678,348.23, 389,541,467.75 and 84,802,298.76 is: 127,211,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,678,348.23 : 389,541,467.75 = 84,802,298.76 : x
  2. Step 2: Convert to fraction form
    259,678,348.23/389,541,467.75 = 84,802,298.76/x
  3. Step 3: Cross multiply
    259,678,348.23x = 389,541,467.75 × 84,802,298.76
  4. Step 4: Simplify right side
    259,678,348.23x = 33,034,011,925,172,684
  5. Step 5: Solve for x
    x = 33,034,011,925,172,684/259,678,348.23
  6. Step 6: Final answer
    x = 127,211,267.90

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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.