Home / 429,608,516,958.90-644,235,476,664.15-146,650,151,509.20

Finding the Fourth Proportional to 429,608,516,958.90, 644,235,476,664.15 and 146,650,151,509.20

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Solution

The fourth proportional to 429,608,516,958.90, 644,235,476,664.15 and 146,650,151,509.20 is: 219,914,704,971.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,608,516,958.90 : 644,235,476,664.15 = 146,650,151,509.20 : x
  2. Step 2: Convert to fraction form
    429,608,516,958.90/644,235,476,664.15 = 146,650,151,509.20/x
  3. Step 3: Cross multiply
    429,608,516,958.90x = 644,235,476,664.15 × 146,650,151,509.20
  4. Step 4: Simplify right side
    429,608,516,958.90x = 94,477,230,260,399,296,741,376
  5. Step 5: Solve for x
    x = 94,477,230,260,399,296,741,376/429,608,516,958.90
  6. Step 6: Final answer
    x = 219,914,704,971.82

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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.