Home / 2,939,976,518.40-4,057,259,453.28-1,687,142,545.92

Finding the Fourth Proportional to 2,939,976,518.40, 4,057,259,453.28 and 1,687,142,545.92

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Solution

The fourth proportional to 2,939,976,518.40, 4,057,259,453.28 and 1,687,142,545.92 is: 2,328,309,427.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939,976,518.40 : 4,057,259,453.28 = 1,687,142,545.92 : x
  2. Step 2: Convert to fraction form
    2,939,976,518.40/4,057,259,453.28 = 1,687,142,545.92/x
  3. Step 3: Cross multiply
    2,939,976,518.40x = 4,057,259,453.28 × 1,687,142,545.92
  4. Step 4: Simplify right side
    2,939,976,518.40x = 6,845,175,043,464,807,424
  5. Step 5: Solve for x
    x = 6,845,175,043,464,807,424/2,939,976,518.40
  6. Step 6: Final answer
    x = 2,328,309,427.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.