Home / 425,820,546.40-638,730,819.60-153,200,207.20

Finding the Fourth Proportional to 425,820,546.40, 638,730,819.60 and 153,200,207.20

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Solution

The fourth proportional to 425,820,546.40, 638,730,819.60 and 153,200,207.20 is: 229,800,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,820,546.40 : 638,730,819.60 = 153,200,207.20 : x
  2. Step 2: Convert to fraction form
    425,820,546.40/638,730,819.60 = 153,200,207.20/x
  3. Step 3: Cross multiply
    425,820,546.40x = 638,730,819.60 × 153,200,207.20
  4. Step 4: Simplify right side
    425,820,546.40x = 97,853,693,907,745,824
  5. Step 5: Solve for x
    x = 97,853,693,907,745,824/425,820,546.40
  6. Step 6: Final answer
    x = 229,800,310.80

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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.