Home / 187,410,037.40-281,141,212.80-78,210,177.20

Finding the Fourth Proportional to 187,410,037.40, 281,141,212.80 and 78,210,177.20

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Solution

The fourth proportional to 187,410,037.40, 281,141,212.80 and 78,210,177.20 is: 117,326,181.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,410,037.40 : 281,141,212.80 = 78,210,177.20 : x
  2. Step 2: Convert to fraction form
    187,410,037.40/281,141,212.80 = 78,210,177.20/x
  3. Step 3: Cross multiply
    187,410,037.40x = 281,141,212.80 × 78,210,177.20
  4. Step 4: Simplify right side
    187,410,037.40x = 21,988,104,071,310,908
  5. Step 5: Solve for x
    x = 21,988,104,071,310,908/187,410,037.40
  6. Step 6: Final answer
    x = 117,326,181.54

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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.