Home / 155,072,198.96-213,999,679-84,507,828.52

Finding the Fourth Proportional to 155,072,198.96, 213,999,679 and 84,507,828.52

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Solution

The fourth proportional to 155,072,198.96, 213,999,679 and 84,507,828.52 is: 116,620,827.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,072,198.96 : 213,999,679 = 84,507,828.52 : x
  2. Step 2: Convert to fraction form
    155,072,198.96/213,999,679 = 84,507,828.52/x
  3. Step 3: Cross multiply
    155,072,198.96x = 213,999,679 × 84,507,828.52
  4. Step 4: Simplify right side
    155,072,198.96x = 18,084,648,176,267,044
  5. Step 5: Solve for x
    x = 18,084,648,176,267,044/155,072,198.96
  6. Step 6: Final answer
    x = 116,620,827.57

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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.