Home / 163,735,472.40-245,603,208.60-81,866,986.35

Finding the Fourth Proportional to 163,735,472.40, 245,603,208.60 and 81,866,986.35

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Solution

The fourth proportional to 163,735,472.40, 245,603,208.60 and 81,866,986.35 is: 122,800,479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,735,472.40 : 245,603,208.60 = 81,866,986.35 : x
  2. Step 2: Convert to fraction form
    163,735,472.40/245,603,208.60 = 81,866,986.35/x
  3. Step 3: Cross multiply
    163,735,472.40x = 245,603,208.60 × 81,866,986.35
  4. Step 4: Simplify right side
    163,735,472.40x = 20,106,794,525,972,400
  5. Step 5: Solve for x
    x = 20,106,794,525,972,400/163,735,472.40
  6. Step 6: Final answer
    x = 122,800,479.53

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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.