Home / 609,969,307.20-914,387,090.40-425,736,427.20

Finding the Fourth Proportional to 609,969,307.20, 914,387,090.40 and 425,736,427.20

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Solution

The fourth proportional to 609,969,307.20, 914,387,090.40 and 425,736,427.20 is: 638,208,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,969,307.20 : 914,387,090.40 = 425,736,427.20 : x
  2. Step 2: Convert to fraction form
    609,969,307.20/914,387,090.40 = 425,736,427.20/x
  3. Step 3: Cross multiply
    609,969,307.20x = 914,387,090.40 × 425,736,427.20
  4. Step 4: Simplify right side
    609,969,307.20x = 389,287,892,944,699,392
  5. Step 5: Solve for x
    x = 389,287,892,944,699,392/609,969,307.20
  6. Step 6: Final answer
    x = 638,208,985.85

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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.