Home / 287,063,999.10-430,595,998.65-253,051,775.10

Finding the Fourth Proportional to 287,063,999.10, 430,595,998.65 and 253,051,775.10

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Solution

The fourth proportional to 287,063,999.10, 430,595,998.65 and 253,051,775.10 is: 379,577,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,063,999.10 : 430,595,998.65 = 253,051,775.10 : x
  2. Step 2: Convert to fraction form
    287,063,999.10/430,595,998.65 = 253,051,775.10/x
  3. Step 3: Cross multiply
    287,063,999.10x = 430,595,998.65 × 253,051,775.10
  4. Step 4: Simplify right side
    287,063,999.10x = 108,963,081,809,339,696
  5. Step 5: Solve for x
    x = 108,963,081,809,339,696/287,063,999.10
  6. Step 6: Final answer
    x = 379,577,662.65

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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.