Home / 315,557,588.70-473,336,375.76-85,526,668.80

Finding the Fourth Proportional to 315,557,588.70, 473,336,375.76 and 85,526,668.80

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Solution

The fourth proportional to 315,557,588.70, 473,336,375.76 and 85,526,668.80 is: 128,290,001.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,557,588.70 : 473,336,375.76 = 85,526,668.80 : x
  2. Step 2: Convert to fraction form
    315,557,588.70/473,336,375.76 = 85,526,668.80/x
  3. Step 3: Cross multiply
    315,557,588.70x = 473,336,375.76 × 85,526,668.80
  4. Step 4: Simplify right side
    315,557,588.70x = 40,482,883,440,617,864
  5. Step 5: Solve for x
    x = 40,482,883,440,617,864/315,557,588.70
  6. Step 6: Final answer
    x = 128,290,001.22

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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.