Home / 1,259,296,340.10-1,888,876,394.64-385,900,243.80

Finding the Fourth Proportional to 1,259,296,340.10, 1,888,876,394.64 and 385,900,243.80

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Solution

The fourth proportional to 1,259,296,340.10, 1,888,876,394.64 and 385,900,243.80 is: 578,829,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,296,340.10 : 1,888,876,394.64 = 385,900,243.80 : x
  2. Step 2: Convert to fraction form
    1,259,296,340.10/1,888,876,394.64 = 385,900,243.80/x
  3. Step 3: Cross multiply
    1,259,296,340.10x = 1,888,876,394.64 × 385,900,243.80
  4. Step 4: Simplify right side
    1,259,296,340.10x = 728,917,861,199,641,088
  5. Step 5: Solve for x
    x = 728,917,861,199,641,088/1,259,296,340.10
  6. Step 6: Final answer
    x = 578,829,492.30

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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.