Home / 313,616,123.20-470,424,184.80-191,172,116.80

Finding the Fourth Proportional to 313,616,123.20, 470,424,184.80 and 191,172,116.80

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Solution

The fourth proportional to 313,616,123.20, 470,424,184.80 and 191,172,116.80 is: 286,758,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,616,123.20 : 470,424,184.80 = 191,172,116.80 : x
  2. Step 2: Convert to fraction form
    313,616,123.20/470,424,184.80 = 191,172,116.80/x
  3. Step 3: Cross multiply
    313,616,123.20x = 470,424,184.80 × 191,172,116.80
  4. Step 4: Simplify right side
    313,616,123.20x = 89,931,987,202,130,400
  5. Step 5: Solve for x
    x = 89,931,987,202,130,400/313,616,123.20
  6. Step 6: Final answer
    x = 286,758,175.20

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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.