Home / 472,197,126.78-708,089,983.02-250,820,021.46

Finding the Fourth Proportional to 472,197,126.78, 708,089,983.02 and 250,820,021.46

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Solution

The fourth proportional to 472,197,126.78, 708,089,983.02 and 250,820,021.46 is: 376,120,765.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,197,126.78 : 708,089,983.02 = 250,820,021.46 : x
  2. Step 2: Convert to fraction form
    472,197,126.78/708,089,983.02 = 250,820,021.46/x
  3. Step 3: Cross multiply
    472,197,126.78x = 708,089,983.02 × 250,820,021.46
  4. Step 4: Simplify right side
    472,197,126.78x = 177,603,144,736,687,424
  5. Step 5: Solve for x
    x = 177,603,144,736,687,424/472,197,126.78
  6. Step 6: Final answer
    x = 376,120,765.38

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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.