Home / 117,221,811.02-161,795,495.86-79,608,617.27

Finding the Fourth Proportional to 117,221,811.02, 161,795,495.86 and 79,608,617.27

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Solution

The fourth proportional to 117,221,811.02, 161,795,495.86 and 79,608,617.27 is: 109,879,855.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,221,811.02 : 161,795,495.86 = 79,608,617.27 : x
  2. Step 2: Convert to fraction form
    117,221,811.02/161,795,495.86 = 79,608,617.27/x
  3. Step 3: Cross multiply
    117,221,811.02x = 161,795,495.86 × 79,608,617.27
  4. Step 4: Simplify right side
    117,221,811.02x = 12,880,315,705,527,342
  5. Step 5: Solve for x
    x = 12,880,315,705,527,342/117,221,811.02
  6. Step 6: Final answer
    x = 109,879,855.92

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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.