Home / 210,030,076.76-289,833,908.13-115,942,202.87

Finding the Fourth Proportional to 210,030,076.76, 289,833,908.13 and 115,942,202.87

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Solution

The fourth proportional to 210,030,076.76, 289,833,908.13 and 115,942,202.87 is: 159,996,045.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,030,076.76 : 289,833,908.13 = 115,942,202.87 : x
  2. Step 2: Convert to fraction form
    210,030,076.76/289,833,908.13 = 115,942,202.87/x
  3. Step 3: Cross multiply
    210,030,076.76x = 289,833,908.13 × 115,942,202.87
  4. Step 4: Simplify right side
    210,030,076.76x = 33,603,981,773,564,232
  5. Step 5: Solve for x
    x = 33,603,981,773,564,232/210,030,076.76
  6. Step 6: Final answer
    x = 159,996,045.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.