Home / 129,035,052.69-178,021,662.63-84,406,499.19

Finding the Fourth Proportional to 129,035,052.69, 178,021,662.63 and 84,406,499.19

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Solution

The fourth proportional to 129,035,052.69, 178,021,662.63 and 84,406,499.19 is: 116,450,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,035,052.69 : 178,021,662.63 = 84,406,499.19 : x
  2. Step 2: Convert to fraction form
    129,035,052.69/178,021,662.63 = 84,406,499.19/x
  3. Step 3: Cross multiply
    129,035,052.69x = 178,021,662.63 × 84,406,499.19
  4. Step 4: Simplify right side
    129,035,052.69x = 15,026,185,322,581,548
  5. Step 5: Solve for x
    x = 15,026,185,322,581,548/129,035,052.69
  6. Step 6: Final answer
    x = 116,450,414.13

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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.