Home / 626,134,220.40-939,201,330.60-393,339,442.80

Finding the Fourth Proportional to 626,134,220.40, 939,201,330.60 and 393,339,442.80

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Solution

The fourth proportional to 626,134,220.40, 939,201,330.60 and 393,339,442.80 is: 590,009,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,134,220.40 : 939,201,330.60 = 393,339,442.80 : x
  2. Step 2: Convert to fraction form
    626,134,220.40/939,201,330.60 = 393,339,442.80/x
  3. Step 3: Cross multiply
    626,134,220.40x = 939,201,330.60 × 393,339,442.80
  4. Step 4: Simplify right side
    626,134,220.40x = 369,424,928,055,222,592
  5. Step 5: Solve for x
    x = 369,424,928,055,222,592/626,134,220.40
  6. Step 6: Final answer
    x = 590,009,164.20

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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.