Home / 114,954,668-158,637,441.84-78,349,186.88

Finding the Fourth Proportional to 114,954,668, 158,637,441.84 and 78,349,186.88

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Solution

The fourth proportional to 114,954,668, 158,637,441.84 and 78,349,186.88 is: 108,121,877.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,954,668 : 158,637,441.84 = 78,349,186.88 : x
  2. Step 2: Convert to fraction form
    114,954,668/158,637,441.84 = 78,349,186.88/x
  3. Step 3: Cross multiply
    114,954,668x = 158,637,441.84 × 78,349,186.88
  4. Step 4: Simplify right side
    114,954,668x = 12,429,114,576,887,290
  5. Step 5: Solve for x
    x = 12,429,114,576,887,290/114,954,668
  6. Step 6: Final answer
    x = 108,121,877.89

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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.