Home / 319,569,613.76-478,930,651.81-164,117,142.56

Finding the Fourth Proportional to 319,569,613.76, 478,930,651.81 and 164,117,142.56

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Solution

The fourth proportional to 319,569,613.76, 478,930,651.81 and 164,117,142.56 is: 245,958,084.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,569,613.76 : 478,930,651.81 = 164,117,142.56 : x
  2. Step 2: Convert to fraction form
    319,569,613.76/478,930,651.81 = 164,117,142.56/x
  3. Step 3: Cross multiply
    319,569,613.76x = 478,930,651.81 × 164,117,142.56
  4. Step 4: Simplify right side
    319,569,613.76x = 78,600,730,056,650,544
  5. Step 5: Solve for x
    x = 78,600,730,056,650,544/319,569,613.76
  6. Step 6: Final answer
    x = 245,958,084.47

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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.