Home / 78,421,257.03-117,606,928.83-25,889,147.34

Finding the Fourth Proportional to 78,421,257.03, 117,606,928.83 and 25,889,147.34

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Solution

The fourth proportional to 78,421,257.03, 117,606,928.83 and 25,889,147.34 is: 38,825,482.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,421,257.03 : 117,606,928.83 = 25,889,147.34 : x
  2. Step 2: Convert to fraction form
    78,421,257.03/117,606,928.83 = 25,889,147.34/x
  3. Step 3: Cross multiply
    78,421,257.03x = 117,606,928.83 × 25,889,147.34
  4. Step 4: Simplify right side
    78,421,257.03x = 3,044,743,108,684,763.50
  5. Step 5: Solve for x
    x = 3,044,743,108,684,763.50/78,421,257.03
  6. Step 6: Final answer
    x = 38,825,482.07

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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.