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Finding the Fourth Proportional to 445,502,604.90, 668,253,907.35 and 353,669,600.10

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Solution

The fourth proportional to 445,502,604.90, 668,253,907.35 and 353,669,600.10 is: 530,504,400.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,502,604.90 : 668,253,907.35 = 353,669,600.10 : x
  2. Step 2: Convert to fraction form
    445,502,604.90/668,253,907.35 = 353,669,600.10/x
  3. Step 3: Cross multiply
    445,502,604.90x = 668,253,907.35 × 353,669,600.10
  4. Step 4: Simplify right side
    445,502,604.90x = 236,341,092,177,736,960
  5. Step 5: Solve for x
    x = 236,341,092,177,736,960/445,502,604.90
  6. Step 6: Final answer
    x = 530,504,400.15

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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.