Home / 287,008,089.48-395,859,704.64-216,446,673.34

Finding the Fourth Proportional to 287,008,089.48, 395,859,704.64 and 216,446,673.34

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Solution

The fourth proportional to 287,008,089.48, 395,859,704.64 and 216,446,673.34 is: 298,536,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,008,089.48 : 395,859,704.64 = 216,446,673.34 : x
  2. Step 2: Convert to fraction form
    287,008,089.48/395,859,704.64 = 216,446,673.34/x
  3. Step 3: Cross multiply
    287,008,089.48x = 395,859,704.64 × 216,446,673.34
  4. Step 4: Simplify right side
    287,008,089.48x = 85,682,516,177,693,312
  5. Step 5: Solve for x
    x = 85,682,516,177,693,312/287,008,089.48
  6. Step 6: Final answer
    x = 298,536,937.87

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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.