Home / 121,051,196.04-166,855,505.40-81,878,687.22

Finding the Fourth Proportional to 121,051,196.04, 166,855,505.40 and 81,878,687.22

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Solution

The fourth proportional to 121,051,196.04, 166,855,505.40 and 81,878,687.22 is: 112,860,592.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,051,196.04 : 166,855,505.40 = 81,878,687.22 : x
  2. Step 2: Convert to fraction form
    121,051,196.04/166,855,505.40 = 81,878,687.22/x
  3. Step 3: Cross multiply
    121,051,196.04x = 166,855,505.40 × 81,878,687.22
  4. Step 4: Simplify right side
    121,051,196.04x = 13,661,909,737,581,622
  5. Step 5: Solve for x
    x = 13,661,909,737,581,622/121,051,196.04
  6. Step 6: Final answer
    x = 112,860,592.75

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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.