Home / 1,270,263,632.83-1,905,184,112.24-384,738,454.90

Finding the Fourth Proportional to 1,270,263,632.83, 1,905,184,112.24 and 384,738,454.90

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Solution

The fourth proportional to 1,270,263,632.83, 1,905,184,112.24 and 384,738,454.90 is: 577,043,672.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,263,632.83 : 1,905,184,112.24 = 384,738,454.90 : x
  2. Step 2: Convert to fraction form
    1,270,263,632.83/1,905,184,112.24 = 384,738,454.90/x
  3. Step 3: Cross multiply
    1,270,263,632.83x = 1,905,184,112.24 × 384,738,454.90
  4. Step 4: Simplify right side
    1,270,263,632.83x = 732,997,591,634,586,240
  5. Step 5: Solve for x
    x = 732,997,591,634,586,240/1,270,263,632.83
  6. Step 6: Final answer
    x = 577,043,672.42

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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.