Home / 325,725,814.80-488,588,722.20-290,012,979.60

Finding the Fourth Proportional to 325,725,814.80, 488,588,722.20 and 290,012,979.60

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Solution

The fourth proportional to 325,725,814.80, 488,588,722.20 and 290,012,979.60 is: 435,019,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,725,814.80 : 488,588,722.20 = 290,012,979.60 : x
  2. Step 2: Convert to fraction form
    325,725,814.80/488,588,722.20 = 290,012,979.60/x
  3. Step 3: Cross multiply
    325,725,814.80x = 488,588,722.20 × 290,012,979.60
  4. Step 4: Simplify right side
    325,725,814.80x = 141,697,071,124,178,672
  5. Step 5: Solve for x
    x = 141,697,071,124,178,672/325,725,814.80
  6. Step 6: Final answer
    x = 435,019,469.40

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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.