Home / 84,196,409.25-126,294,618.74-20,371,001.25

Finding the Fourth Proportional to 84,196,409.25, 126,294,618.74 and 20,371,001.25

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Solution

The fourth proportional to 84,196,409.25, 126,294,618.74 and 20,371,001.25 is: 30,556,503.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,196,409.25 : 126,294,618.74 = 20,371,001.25 : x
  2. Step 2: Convert to fraction form
    84,196,409.25/126,294,618.74 = 20,371,001.25/x
  3. Step 3: Cross multiply
    84,196,409.25x = 126,294,618.74 × 20,371,001.25
  4. Step 4: Simplify right side
    84,196,409.25x = 2,572,747,836,118,958.50
  5. Step 5: Solve for x
    x = 2,572,747,836,118,958.50/84,196,409.25
  6. Step 6: Final answer
    x = 30,556,503.05

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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.