Home / 328,924,359.89-493,381,890.47-79,931,447.43

Finding the Fourth Proportional to 328,924,359.89, 493,381,890.47 and 79,931,447.43

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Solution

The fourth proportional to 328,924,359.89, 493,381,890.47 and 79,931,447.43 is: 119,896,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,924,359.89 : 493,381,890.47 = 79,931,447.43 : x
  2. Step 2: Convert to fraction form
    328,924,359.89/493,381,890.47 = 79,931,447.43/x
  3. Step 3: Cross multiply
    328,924,359.89x = 493,381,890.47 × 79,931,447.43
  4. Step 4: Simplify right side
    328,924,359.89x = 39,436,728,640,617,168
  5. Step 5: Solve for x
    x = 39,436,728,640,617,168/328,924,359.89
  6. Step 6: Final answer
    x = 119,896,041.31

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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.