Home / 139,802,145.84-192,928,240.80-77,080,494.87

Finding the Fourth Proportional to 139,802,145.84, 192,928,240.80 and 77,080,494.87

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Solution

The fourth proportional to 139,802,145.84, 192,928,240.80 and 77,080,494.87 is: 106,371,788.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,802,145.84 : 192,928,240.80 = 77,080,494.87 : x
  2. Step 2: Convert to fraction form
    139,802,145.84/192,928,240.80 = 77,080,494.87/x
  3. Step 3: Cross multiply
    139,802,145.84x = 192,928,240.80 × 77,080,494.87
  4. Step 4: Simplify right side
    139,802,145.84x = 14,871,004,275,262,526
  5. Step 5: Solve for x
    x = 14,871,004,275,262,526/139,802,145.84
  6. Step 6: Final answer
    x = 106,371,788.40

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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.