Home / 187,410,038.40-281,141,214.30-78,210,178.20

Finding the Fourth Proportional to 187,410,038.40, 281,141,214.30 and 78,210,178.20

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Solution

The fourth proportional to 187,410,038.40, 281,141,214.30 and 78,210,178.20 is: 117,326,183.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,410,038.40 : 281,141,214.30 = 78,210,178.20 : x
  2. Step 2: Convert to fraction form
    187,410,038.40/281,141,214.30 = 78,210,178.20/x
  3. Step 3: Cross multiply
    187,410,038.40x = 281,141,214.30 × 78,210,178.20
  4. Step 4: Simplify right side
    187,410,038.40x = 21,988,104,469,767,392
  5. Step 5: Solve for x
    x = 21,988,104,469,767,392/187,410,038.40
  6. Step 6: Final answer
    x = 117,326,183.04

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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.