Home / 289,587,003.40-434,380,505.10-153,538,107.40

Finding the Fourth Proportional to 289,587,003.40, 434,380,505.10 and 153,538,107.40

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Solution

The fourth proportional to 289,587,003.40, 434,380,505.10 and 153,538,107.40 is: 230,307,161.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,587,003.40 : 434,380,505.10 = 153,538,107.40 : x
  2. Step 2: Convert to fraction form
    289,587,003.40/434,380,505.10 = 153,538,107.40/x
  3. Step 3: Cross multiply
    289,587,003.40x = 434,380,505.10 × 153,538,107.40
  4. Step 4: Simplify right side
    289,587,003.40x = 66,693,960,644,510,056
  5. Step 5: Solve for x
    x = 66,693,960,644,510,056/289,587,003.40
  6. Step 6: Final answer
    x = 230,307,161.10

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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.