Home / 78,421,226.40-117,606,883.01-25,889,116.74

Finding the Fourth Proportional to 78,421,226.40, 117,606,883.01 and 25,889,116.74

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Solution

The fourth proportional to 78,421,226.40, 117,606,883.01 and 25,889,116.74 is: 38,825,436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,421,226.40 : 117,606,883.01 = 25,889,116.74 : x
  2. Step 2: Convert to fraction form
    78,421,226.40/117,606,883.01 = 25,889,116.74/x
  3. Step 3: Cross multiply
    78,421,226.40x = 117,606,883.01 × 25,889,116.74
  4. Step 4: Simplify right side
    78,421,226.40x = 3,044,738,323,150,101
  5. Step 5: Solve for x
    x = 3,044,738,323,150,101/78,421,226.40
  6. Step 6: Final answer
    x = 38,825,436.21

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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.