Home / 1,237,851,259.09-1,856,382,957.69-408,650,509.75

Finding the Fourth Proportional to 1,237,851,259.09, 1,856,382,957.69 and 408,650,509.75

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Solution

The fourth proportional to 1,237,851,259.09, 1,856,382,957.69 and 408,650,509.75 is: 612,845,716.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,851,259.09 : 1,856,382,957.69 = 408,650,509.75 : x
  2. Step 2: Convert to fraction form
    1,237,851,259.09/1,856,382,957.69 = 408,650,509.75/x
  3. Step 3: Cross multiply
    1,237,851,259.09x = 1,856,382,957.69 × 408,650,509.75
  4. Step 4: Simplify right side
    1,237,851,259.09x = 758,611,841,951,231,232
  5. Step 5: Solve for x
    x = 758,611,841,951,231,232/1,237,851,259.09
  6. Step 6: Final answer
    x = 612,845,716.62

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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.