Home / 103,083,018,500.72-154,646,783,563.64-31,378,139,732.18

Finding the Fourth Proportional to 103,083,018,500.72, 154,646,783,563.64 and 31,378,139,732.18

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Solution

The fourth proportional to 103,083,018,500.72, 154,646,783,563.64 and 31,378,139,732.18 is: 47,073,984,196.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,083,018,500.72 : 154,646,783,563.64 = 31,378,139,732.18 : x
  2. Step 2: Convert to fraction form
    103,083,018,500.72/154,646,783,563.64 = 31,378,139,732.18/x
  3. Step 3: Cross multiply
    103,083,018,500.72x = 154,646,783,563.64 × 31,378,139,732.18
  4. Step 4: Simplify right side
    103,083,018,500.72x = 4,852,528,383,791,474,933,760
  5. Step 5: Solve for x
    x = 4,852,528,383,791,474,933,760/103,083,018,500.72
  6. Step 6: Final answer
    x = 47,073,984,196.12

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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.