Home / 139,163,137.71-192,039,868.77-77,287,462.08

Finding the Fourth Proportional to 139,163,137.71, 192,039,868.77 and 77,287,462.08

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Solution

The fourth proportional to 139,163,137.71, 192,039,868.77 and 77,287,462.08 is: 106,653,775.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163,137.71 : 192,039,868.77 = 77,287,462.08 : x
  2. Step 2: Convert to fraction form
    139,163,137.71/192,039,868.77 = 77,287,462.08/x
  3. Step 3: Cross multiply
    139,163,137.71x = 192,039,868.77 × 77,287,462.08
  4. Step 4: Simplify right side
    139,163,137.71x = 14,842,274,075,409,552
  5. Step 5: Solve for x
    x = 14,842,274,075,409,552/139,163,137.71
  6. Step 6: Final answer
    x = 106,653,775.70

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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.