Home / 129,369,488.96-178,610,465.40-82,353,090.80

Finding the Fourth Proportional to 129,369,488.96, 178,610,465.40 and 82,353,090.80

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Solution

The fourth proportional to 129,369,488.96, 178,610,465.40 and 82,353,090.80 is: 113,698,554.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,369,488.96 : 178,610,465.40 = 82,353,090.80 : x
  2. Step 2: Convert to fraction form
    129,369,488.96/178,610,465.40 = 82,353,090.80/x
  3. Step 3: Cross multiply
    129,369,488.96x = 178,610,465.40 × 82,353,090.80
  4. Step 4: Simplify right side
    129,369,488.96x = 14,709,123,874,916,458
  5. Step 5: Solve for x
    x = 14,709,123,874,916,458/129,369,488.96
  6. Step 6: Final answer
    x = 113,698,554.37

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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.