Home / 101,393,561.28-139,923,151.80-54,983,802.96

Finding the Fourth Proportional to 101,393,561.28, 139,923,151.80 and 54,983,802.96

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Solution

The fourth proportional to 101,393,561.28, 139,923,151.80 and 54,983,802.96 is: 75,877,668.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,393,561.28 : 139,923,151.80 = 54,983,802.96 : x
  2. Step 2: Convert to fraction form
    101,393,561.28/139,923,151.80 = 54,983,802.96/x
  3. Step 3: Cross multiply
    101,393,561.28x = 139,923,151.80 × 54,983,802.96
  4. Step 4: Simplify right side
    101,393,561.28x = 7,693,507,008,113,370
  5. Step 5: Solve for x
    x = 7,693,507,008,113,370/101,393,561.28
  6. Step 6: Final answer
    x = 75,877,668.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.