Home / 442,867,968.85-664,301,953.28-328,076,712.85

Finding the Fourth Proportional to 442,867,968.85, 664,301,953.28 and 328,076,712.85

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Solution

The fourth proportional to 442,867,968.85, 664,301,953.28 and 328,076,712.85 is: 492,115,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,867,968.85 : 664,301,953.28 = 328,076,712.85 : x
  2. Step 2: Convert to fraction form
    442,867,968.85/664,301,953.28 = 328,076,712.85/x
  3. Step 3: Cross multiply
    442,867,968.85x = 664,301,953.28 × 328,076,712.85
  4. Step 4: Simplify right side
    442,867,968.85x = 217,942,001,170,296,288
  5. Step 5: Solve for x
    x = 217,942,001,170,296,288/442,867,968.85
  6. Step 6: Final answer
    x = 492,115,069.28

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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.