Home / 28,106,036.96-38,786,111.79-15,716,154.35

Finding the Fourth Proportional to 28,106,036.96, 38,786,111.79 and 15,716,154.35

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Solution

The fourth proportional to 28,106,036.96, 38,786,111.79 and 15,716,154.35 is: 21,688,170.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106,036.96 : 38,786,111.79 = 15,716,154.35 : x
  2. Step 2: Convert to fraction form
    28,106,036.96/38,786,111.79 = 15,716,154.35/x
  3. Step 3: Cross multiply
    28,106,036.96x = 38,786,111.79 × 15,716,154.35
  4. Step 4: Simplify right side
    28,106,036.96x = 609,568,519,347,852.62
  5. Step 5: Solve for x
    x = 609,568,519,347,852.62/28,106,036.96
  6. Step 6: Final answer
    x = 21,688,170.42

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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.