Home / 20,829,554.80-31,249,318.56-8,692,265.22

Finding the Fourth Proportional to 20,829,554.80, 31,249,318.56 and 8,692,265.22

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Solution

The fourth proportional to 20,829,554.80, 31,249,318.56 and 8,692,265.22 is: 13,040,478.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829,554.80 : 31,249,318.56 = 8,692,265.22 : x
  2. Step 2: Convert to fraction form
    20,829,554.80/31,249,318.56 = 8,692,265.22/x
  3. Step 3: Cross multiply
    20,829,554.80x = 31,249,318.56 × 8,692,265.22
  4. Step 4: Simplify right side
    20,829,554.80x = 271,627,364,718,007.56
  5. Step 5: Solve for x
    x = 271,627,364,718,007.56/20,829,554.80
  6. Step 6: Final answer
    x = 13,040,478.65

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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.