Home / 78,421,257.41-117,606,929.40-25,889,147.71

Finding the Fourth Proportional to 78,421,257.41, 117,606,929.40 and 25,889,147.71

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Solution

The fourth proportional to 78,421,257.41, 117,606,929.40 and 25,889,147.71 is: 38,825,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,421,257.41 : 117,606,929.40 = 25,889,147.71 : x
  2. Step 2: Convert to fraction form
    78,421,257.41/117,606,929.40 = 25,889,147.71/x
  3. Step 3: Cross multiply
    78,421,257.41x = 117,606,929.40 × 25,889,147.71
  4. Step 4: Simplify right side
    78,421,257.41x = 3,044,743,166,662,124.50
  5. Step 5: Solve for x
    x = 3,044,743,166,662,124.50/78,421,257.41
  6. Step 6: Final answer
    x = 38,825,482.62

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.