Home / 186,212,071.80-278,839,810.80-147,629,455.20

Finding the Fourth Proportional to 186,212,071.80, 278,839,810.80 and 147,629,455.20

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Solution

The fourth proportional to 186,212,071.80, 278,839,810.80 and 147,629,455.20 is: 221,064,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,212,071.80 : 278,839,810.80 = 147,629,455.20 : x
  2. Step 2: Convert to fraction form
    186,212,071.80/278,839,810.80 = 147,629,455.20/x
  3. Step 3: Cross multiply
    186,212,071.80x = 278,839,810.80 × 147,629,455.20
  4. Step 4: Simplify right side
    186,212,071.80x = 41,164,969,356,475,072
  5. Step 5: Solve for x
    x = 41,164,969,356,475,072/186,212,071.80
  6. Step 6: Final answer
    x = 221,064,987.67

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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.