Home / 78,389,678.82-117,576,920.28-23,802,744.21

Finding the Fourth Proportional to 78,389,678.82, 117,576,920.28 and 23,802,744.21

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Solution

The fourth proportional to 78,389,678.82, 117,576,920.28 and 23,802,744.21 is: 35,701,809.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,389,678.82 : 117,576,920.28 = 23,802,744.21 : x
  2. Step 2: Convert to fraction form
    78,389,678.82/117,576,920.28 = 23,802,744.21/x
  3. Step 3: Cross multiply
    78,389,678.82x = 117,576,920.28 × 23,802,744.21
  4. Step 4: Simplify right side
    78,389,678.82x = 2,798,653,358,072,748.50
  5. Step 5: Solve for x
    x = 2,798,653,358,072,748.50/78,389,678.82
  6. Step 6: Final answer
    x = 35,701,809.22

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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.