Home / 646,098,950.40-969,148,425.60-388,109,932.80

Finding the Fourth Proportional to 646,098,950.40, 969,148,425.60 and 388,109,932.80

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Solution

The fourth proportional to 646,098,950.40, 969,148,425.60 and 388,109,932.80 is: 582,164,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,098,950.40 : 969,148,425.60 = 388,109,932.80 : x
  2. Step 2: Convert to fraction form
    646,098,950.40/969,148,425.60 = 388,109,932.80/x
  3. Step 3: Cross multiply
    646,098,950.40x = 969,148,425.60 × 388,109,932.80
  4. Step 4: Simplify right side
    646,098,950.40x = 376,136,130,332,841,792
  5. Step 5: Solve for x
    x = 376,136,130,332,841,792/646,098,950.40
  6. Step 6: Final answer
    x = 582,164,899.20

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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.