Home / 139,729,759.48-192,828,385.83-77,008,119.13

Finding the Fourth Proportional to 139,729,759.48, 192,828,385.83 and 77,008,119.13

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Solution

The fourth proportional to 139,729,759.48, 192,828,385.83 and 77,008,119.13 is: 106,271,930.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,729,759.48 : 192,828,385.83 = 77,008,119.13 : x
  2. Step 2: Convert to fraction form
    139,729,759.48/192,828,385.83 = 77,008,119.13/x
  3. Step 3: Cross multiply
    139,729,759.48x = 192,828,385.83 × 77,008,119.13
  4. Step 4: Simplify right side
    139,729,759.48x = 14,849,351,307,642,244
  5. Step 5: Solve for x
    x = 14,849,351,307,642,244/139,729,759.48
  6. Step 6: Final answer
    x = 106,271,930.64

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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.