Home / 343,706,015.60-515,111,125.80-139,066,578.80

Finding the Fourth Proportional to 343,706,015.60, 515,111,125.80 and 139,066,578.80

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Solution

The fourth proportional to 343,706,015.60, 515,111,125.80 and 139,066,578.80 is: 208,418,644.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,706,015.60 : 515,111,125.80 = 139,066,578.80 : x
  2. Step 2: Convert to fraction form
    343,706,015.60/515,111,125.80 = 139,066,578.80/x
  3. Step 3: Cross multiply
    343,706,015.60x = 515,111,125.80 × 139,066,578.80
  4. Step 4: Simplify right side
    343,706,015.60x = 71,634,741,966,822,424
  5. Step 5: Solve for x
    x = 71,634,741,966,822,424/343,706,015.60
  6. Step 6: Final answer
    x = 208,418,644.76

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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.