Home / 427,283,792.88-641,005,393.32-194,130,852.72

Finding the Fourth Proportional to 427,283,792.88, 641,005,393.32 and 194,130,852.72

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Solution

The fourth proportional to 427,283,792.88, 641,005,393.32 and 194,130,852.72 is: 291,232,491.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,283,792.88 : 641,005,393.32 = 194,130,852.72 : x
  2. Step 2: Convert to fraction form
    427,283,792.88/641,005,393.32 = 194,130,852.72/x
  3. Step 3: Cross multiply
    427,283,792.88x = 641,005,393.32 × 194,130,852.72
  4. Step 4: Simplify right side
    427,283,792.88x = 124,438,923,603,330,608
  5. Step 5: Solve for x
    x = 124,438,923,603,330,608/427,283,792.88
  6. Step 6: Final answer
    x = 291,232,491.56

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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.