Home / 631,155,220.40-946,732,830.60-413,476,986.80

Finding the Fourth Proportional to 631,155,220.40, 946,732,830.60 and 413,476,986.80

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Solution

The fourth proportional to 631,155,220.40, 946,732,830.60 and 413,476,986.80 is: 620,215,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,155,220.40 : 946,732,830.60 = 413,476,986.80 : x
  2. Step 2: Convert to fraction form
    631,155,220.40/946,732,830.60 = 413,476,986.80/x
  3. Step 3: Cross multiply
    631,155,220.40x = 946,732,830.60 × 413,476,986.80
  4. Step 4: Simplify right side
    631,155,220.40x = 391,452,238,101,122,880
  5. Step 5: Solve for x
    x = 391,452,238,101,122,880/631,155,220.40
  6. Step 6: Final answer
    x = 620,215,480.20

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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.