Home / 429,310,285.10-643,965,427.65-293,261,389.10

Finding the Fourth Proportional to 429,310,285.10, 643,965,427.65 and 293,261,389.10

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Solution

The fourth proportional to 429,310,285.10, 643,965,427.65 and 293,261,389.10 is: 439,892,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,310,285.10 : 643,965,427.65 = 293,261,389.10 : x
  2. Step 2: Convert to fraction form
    429,310,285.10/643,965,427.65 = 293,261,389.10/x
  3. Step 3: Cross multiply
    429,310,285.10x = 643,965,427.65 × 293,261,389.10
  4. Step 4: Simplify right side
    429,310,285.10x = 188,850,195,845,014,560
  5. Step 5: Solve for x
    x = 188,850,195,845,014,560/429,310,285.10
  6. Step 6: Final answer
    x = 439,892,083.65

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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.