Home / 289,354,828.80-399,300,452.10-165,592,848.72

Finding the Fourth Proportional to 289,354,828.80, 399,300,452.10 and 165,592,848.72

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Solution

The fourth proportional to 289,354,828.80, 399,300,452.10 and 165,592,848.72 is: 228,512,859.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,354,828.80 : 399,300,452.10 = 165,592,848.72 : x
  2. Step 2: Convert to fraction form
    289,354,828.80/399,300,452.10 = 165,592,848.72/x
  3. Step 3: Cross multiply
    289,354,828.80x = 399,300,452.10 × 165,592,848.72
  4. Step 4: Simplify right side
    289,354,828.80x = 66,121,299,358,422,912
  5. Step 5: Solve for x
    x = 66,121,299,358,422,912/289,354,828.80
  6. Step 6: Final answer
    x = 228,512,859.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.