Home / 429,869,638.22-644,679,770.65-167,495,666.49

Finding the Fourth Proportional to 429,869,638.22, 644,679,770.65 and 167,495,666.49

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Solution

The fourth proportional to 429,869,638.22, 644,679,770.65 and 167,495,666.49 is: 251,194,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,869,638.22 : 644,679,770.65 = 167,495,666.49 : x
  2. Step 2: Convert to fraction form
    429,869,638.22/644,679,770.65 = 167,495,666.49/x
  3. Step 3: Cross multiply
    429,869,638.22x = 644,679,770.65 × 167,495,666.49
  4. Step 4: Simplify right side
    429,869,638.22x = 107,981,067,857,223,360
  5. Step 5: Solve for x
    x = 107,981,067,857,223,360/429,869,638.22
  6. Step 6: Final answer
    x = 251,194,916.45

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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.