Home / 20,429,552.84-28,193,095.71-11,137,128.35

Finding the Fourth Proportional to 20,429,552.84, 28,193,095.71 and 11,137,128.35

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Solution

The fourth proportional to 20,429,552.84, 28,193,095.71 and 11,137,128.35 is: 15,369,407.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,429,552.84 : 28,193,095.71 = 11,137,128.35 : x
  2. Step 2: Convert to fraction form
    20,429,552.84/28,193,095.71 = 11,137,128.35/x
  3. Step 3: Cross multiply
    20,429,552.84x = 28,193,095.71 × 11,137,128.35
  4. Step 4: Simplify right side
    20,429,552.84x = 313,990,125,365,138.94
  5. Step 5: Solve for x
    x = 313,990,125,365,138.94/20,429,552.84
  6. Step 6: Final answer
    x = 15,369,407.64

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