Home / 626,240,147.40-939,360,221.10-381,352,134.60

Finding the Fourth Proportional to 626,240,147.40, 939,360,221.10 and 381,352,134.60

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Solution

The fourth proportional to 626,240,147.40, 939,360,221.10 and 381,352,134.60 is: 572,028,201.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,240,147.40 : 939,360,221.10 = 381,352,134.60 : x
  2. Step 2: Convert to fraction form
    626,240,147.40/939,360,221.10 = 381,352,134.60/x
  3. Step 3: Cross multiply
    626,240,147.40x = 939,360,221.10 × 381,352,134.60
  4. Step 4: Simplify right side
    626,240,147.40x = 358,227,025,474,812,992
  5. Step 5: Solve for x
    x = 358,227,025,474,812,992/626,240,147.40
  6. Step 6: Final answer
    x = 572,028,201.90

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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.