Home / 629,498,387.72-868,708,611.83-347,234,461.40

Finding the Fourth Proportional to 629,498,387.72, 868,708,611.83 and 347,234,461.40

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Solution

The fourth proportional to 629,498,387.72, 868,708,611.83 and 347,234,461.40 is: 479,184,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,498,387.72 : 868,708,611.83 = 347,234,461.40 : x
  2. Step 2: Convert to fraction form
    629,498,387.72/868,708,611.83 = 347,234,461.40/x
  3. Step 3: Cross multiply
    629,498,387.72x = 868,708,611.83 × 347,234,461.40
  4. Step 4: Simplify right side
    629,498,387.72x = 301,645,566,942,331,712
  5. Step 5: Solve for x
    x = 301,645,566,942,331,712/629,498,387.72
  6. Step 6: Final answer
    x = 479,184,018.30

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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.