Home / 474,366,905.47-654,590,587.56-288,707,401.63

Finding the Fourth Proportional to 474,366,905.47, 654,590,587.56 and 288,707,401.63

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Solution

The fourth proportional to 474,366,905.47, 654,590,587.56 and 288,707,401.63 is: 398,394,461.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,366,905.47 : 654,590,587.56 = 288,707,401.63 : x
  2. Step 2: Convert to fraction form
    474,366,905.47/654,590,587.56 = 288,707,401.63/x
  3. Step 3: Cross multiply
    474,366,905.47x = 654,590,587.56 × 288,707,401.63
  4. Step 4: Simplify right side
    474,366,905.47x = 188,985,147,665,902,592
  5. Step 5: Solve for x
    x = 188,985,147,665,902,592/474,366,905.47
  6. Step 6: Final answer
    x = 398,394,461.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.