Home / 139,538,733.84-192,563,455.28-77,673,687.03

Finding the Fourth Proportional to 139,538,733.84, 192,563,455.28 and 77,673,687.03

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Solution

The fourth proportional to 139,538,733.84, 192,563,455.28 and 77,673,687.03 is: 107,189,689.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,538,733.84 : 192,563,455.28 = 77,673,687.03 : x
  2. Step 2: Convert to fraction form
    139,538,733.84/192,563,455.28 = 77,673,687.03/x
  3. Step 3: Cross multiply
    139,538,733.84x = 192,563,455.28 × 77,673,687.03
  4. Step 4: Simplify right side
    139,538,733.84x = 14,957,113,558,445,754
  5. Step 5: Solve for x
    x = 14,957,113,558,445,754/139,538,733.84
  6. Step 6: Final answer
    x = 107,189,689.54

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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.