Home / 78,507,083.52-117,811,013.40-38,095,522.56

Finding the Fourth Proportional to 78,507,083.52, 117,811,013.40 and 38,095,522.56

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Solution

The fourth proportional to 78,507,083.52, 117,811,013.40 and 38,095,522.56 is: 57,167,734.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,507,083.52 : 117,811,013.40 = 38,095,522.56 : x
  2. Step 2: Convert to fraction form
    78,507,083.52/117,811,013.40 = 38,095,522.56/x
  3. Step 3: Cross multiply
    78,507,083.52x = 117,811,013.40 × 38,095,522.56
  4. Step 4: Simplify right side
    78,507,083.52x = 4,488,072,118,796,163
  5. Step 5: Solve for x
    x = 4,488,072,118,796,163/78,507,083.52
  6. Step 6: Final answer
    x = 57,167,734.65

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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.