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Finding the Fourth Proportional to 449,330,221.60, 673,796,266.80 and 207,067,386.40

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Solution

The fourth proportional to 449,330,221.60, 673,796,266.80 and 207,067,386.40 is: 310,509,343.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,330,221.60 : 673,796,266.80 = 207,067,386.40 : x
  2. Step 2: Convert to fraction form
    449,330,221.60/673,796,266.80 = 207,067,386.40/x
  3. Step 3: Cross multiply
    449,330,221.60x = 673,796,266.80 × 207,067,386.40
  4. Step 4: Simplify right side
    449,330,221.60x = 139,521,231,932,353,088
  5. Step 5: Solve for x
    x = 139,521,231,932,353,088/449,330,221.60
  6. Step 6: Final answer
    x = 310,509,343.07

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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.