Home / 313,616,121.70-470,424,182.55-191,172,115.30

Finding the Fourth Proportional to 313,616,121.70, 470,424,182.55 and 191,172,115.30

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Solution

The fourth proportional to 313,616,121.70, 470,424,182.55 and 191,172,115.30 is: 286,758,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,616,121.70 : 470,424,182.55 = 191,172,115.30 : x
  2. Step 2: Convert to fraction form
    313,616,121.70/470,424,182.55 = 191,172,115.30/x
  3. Step 3: Cross multiply
    313,616,121.70x = 470,424,182.55 × 191,172,115.30
  4. Step 4: Simplify right side
    313,616,121.70x = 89,931,986,066,356,848
  5. Step 5: Solve for x
    x = 89,931,986,066,356,848/313,616,121.70
  6. Step 6: Final answer
    x = 286,758,172.95

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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.