Home / 126,786,991.20-190,180,486.80-45,997,461.60

Finding the Fourth Proportional to 126,786,991.20, 190,180,486.80 and 45,997,461.60

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Solution

The fourth proportional to 126,786,991.20, 190,180,486.80 and 45,997,461.60 is: 68,996,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,786,991.20 : 190,180,486.80 = 45,997,461.60 : x
  2. Step 2: Convert to fraction form
    126,786,991.20/190,180,486.80 = 45,997,461.60/x
  3. Step 3: Cross multiply
    126,786,991.20x = 190,180,486.80 × 45,997,461.60
  4. Step 4: Simplify right side
    126,786,991.20x = 8,747,819,638,652,308
  5. Step 5: Solve for x
    x = 8,747,819,638,652,308/126,786,991.20
  6. Step 6: Final answer
    x = 68,996,192.40

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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.