Home / 429,715,674.85-644,573,512.28-142,464,014.05

Finding the Fourth Proportional to 429,715,674.85, 644,573,512.28 and 142,464,014.05

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Solution

The fourth proportional to 429,715,674.85, 644,573,512.28 and 142,464,014.05 is: 213,696,021.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,715,674.85 : 644,573,512.28 = 142,464,014.05 : x
  2. Step 2: Convert to fraction form
    429,715,674.85/644,573,512.28 = 142,464,014.05/x
  3. Step 3: Cross multiply
    429,715,674.85x = 644,573,512.28 × 142,464,014.05
  4. Step 4: Simplify right side
    429,715,674.85x = 91,828,529,909,003,456
  5. Step 5: Solve for x
    x = 91,828,529,909,003,456/429,715,674.85
  6. Step 6: Final answer
    x = 213,696,021.08

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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.