Home / 313,173,051.68-470,170,128.88-210,003,902.16

Finding the Fourth Proportional to 313,173,051.68, 470,170,128.88 and 210,003,902.16

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Solution

The fourth proportional to 313,173,051.68, 470,170,128.88 and 210,003,902.16 is: 315,281,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,173,051.68 : 470,170,128.88 = 210,003,902.16 : x
  2. Step 2: Convert to fraction form
    313,173,051.68/470,170,128.88 = 210,003,902.16/x
  3. Step 3: Cross multiply
    313,173,051.68x = 470,170,128.88 × 210,003,902.16
  4. Step 4: Simplify right side
    313,173,051.68x = 98,737,561,743,870,112
  5. Step 5: Solve for x
    x = 98,737,561,743,870,112/313,173,051.68
  6. Step 6: Final answer
    x = 315,281,155.94

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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.