Home / 21,221,480.30-31,832,180.74-6,649,515.36

Finding the Fourth Proportional to 21,221,480.30, 31,832,180.74 and 6,649,515.36

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Solution

The fourth proportional to 21,221,480.30, 31,832,180.74 and 6,649,515.36 is: 9,974,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,221,480.30 : 31,832,180.74 = 6,649,515.36 : x
  2. Step 2: Convert to fraction form
    21,221,480.30/31,832,180.74 = 6,649,515.36/x
  3. Step 3: Cross multiply
    21,221,480.30x = 31,832,180.74 × 6,649,515.36
  4. Step 4: Simplify right side
    21,221,480.30x = 211,668,574,676,721.94
  5. Step 5: Solve for x
    x = 211,668,574,676,721.94/21,221,480.30
  6. Step 6: Final answer
    x = 9,974,260.60

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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.