Home / 187,409,979.13-281,141,125.62-78,210,119.11

Finding the Fourth Proportional to 187,409,979.13, 281,141,125.62 and 78,210,119.11

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Solution

The fourth proportional to 187,409,979.13, 281,141,125.62 and 78,210,119.11 is: 117,326,094.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,409,979.13 : 281,141,125.62 = 78,210,119.11 : x
  2. Step 2: Convert to fraction form
    187,409,979.13/281,141,125.62 = 78,210,119.11/x
  3. Step 3: Cross multiply
    187,409,979.13x = 281,141,125.62 × 78,210,119.11
  4. Step 4: Simplify right side
    187,409,979.13x = 21,988,080,921,459,672
  5. Step 5: Solve for x
    x = 21,988,080,921,459,672/187,409,979.13
  6. Step 6: Final answer
    x = 117,326,094.50

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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.