Home / 78,364,153.69-117,290,449.25-57,609,097.69

Finding the Fourth Proportional to 78,364,153.69, 117,290,449.25 and 57,609,097.69

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Solution

The fourth proportional to 78,364,153.69, 117,290,449.25 and 57,609,097.69 is: 86,225,609.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,364,153.69 : 117,290,449.25 = 57,609,097.69 : x
  2. Step 2: Convert to fraction form
    78,364,153.69/117,290,449.25 = 57,609,097.69/x
  3. Step 3: Cross multiply
    78,364,153.69x = 117,290,449.25 × 57,609,097.69
  4. Step 4: Simplify right side
    78,364,153.69x = 6,756,996,948,504,808
  5. Step 5: Solve for x
    x = 6,756,996,948,504,808/78,364,153.69
  6. Step 6: Final answer
    x = 86,225,609.93

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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.