Home / 1,291,365,519-1,936,689,614.82-358,473,891.48

Finding the Fourth Proportional to 1,291,365,519, 1,936,689,614.82 and 358,473,891.48

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Solution

The fourth proportional to 1,291,365,519, 1,936,689,614.82 and 358,473,891.48 is: 537,611,274.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,365,519 : 1,936,689,614.82 = 358,473,891.48 : x
  2. Step 2: Convert to fraction form
    1,291,365,519/1,936,689,614.82 = 358,473,891.48/x
  3. Step 3: Cross multiply
    1,291,365,519x = 1,936,689,614.82 × 358,473,891.48
  4. Step 4: Simplify right side
    1,291,365,519x = 694,252,662,813,427,712
  5. Step 5: Solve for x
    x = 694,252,662,813,427,712/1,291,365,519
  6. Step 6: Final answer
    x = 537,611,274.73

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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.