Home / 490,118,172.60-735,394,360.47-256,893,457.59

Finding the Fourth Proportional to 490,118,172.60, 735,394,360.47 and 256,893,457.59

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Solution

The fourth proportional to 490,118,172.60, 735,394,360.47 and 256,893,457.59 is: 385,453,979.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,118,172.60 : 735,394,360.47 = 256,893,457.59 : x
  2. Step 2: Convert to fraction form
    490,118,172.60/735,394,360.47 = 256,893,457.59/x
  3. Step 3: Cross multiply
    490,118,172.60x = 735,394,360.47 × 256,893,457.59
  4. Step 4: Simplify right side
    490,118,172.60x = 188,917,999,953,325,120
  5. Step 5: Solve for x
    x = 188,917,999,953,325,120/490,118,172.60
  6. Step 6: Final answer
    x = 385,453,979.29

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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.