Home / 20,819,839.34-28,732,276.32-11,527,409.45

Finding the Fourth Proportional to 20,819,839.34, 28,732,276.32 and 11,527,409.45

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Solution

The fourth proportional to 20,819,839.34, 28,732,276.32 and 11,527,409.45 is: 15,908,322.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,819,839.34 : 28,732,276.32 = 11,527,409.45 : x
  2. Step 2: Convert to fraction form
    20,819,839.34/28,732,276.32 = 11,527,409.45/x
  3. Step 3: Cross multiply
    20,819,839.34x = 28,732,276.32 × 11,527,409.45
  4. Step 4: Simplify right side
    20,819,839.34x = 331,208,713,571,179.19
  5. Step 5: Solve for x
    x = 331,208,713,571,179.19/20,819,839.34
  6. Step 6: Final answer
    x = 15,908,322.26

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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.