Home / 106,428,271.20-159,642,406.80-65,907,362.40

Finding the Fourth Proportional to 106,428,271.20, 159,642,406.80 and 65,907,362.40

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Solution

The fourth proportional to 106,428,271.20, 159,642,406.80 and 65,907,362.40 is: 98,861,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,428,271.20 : 159,642,406.80 = 65,907,362.40 : x
  2. Step 2: Convert to fraction form
    106,428,271.20/159,642,406.80 = 65,907,362.40/x
  3. Step 3: Cross multiply
    106,428,271.20x = 159,642,406.80 × 65,907,362.40
  4. Step 4: Simplify right side
    106,428,271.20x = 10,521,609,959,375,824
  5. Step 5: Solve for x
    x = 10,521,609,959,375,824/106,428,271.20
  6. Step 6: Final answer
    x = 98,861,043.60

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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.