Home / 129,903,505.07-194,884,341.05-43,639,559.07

Finding the Fourth Proportional to 129,903,505.07, 194,884,341.05 and 43,639,559.07

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Solution

The fourth proportional to 129,903,505.07, 194,884,341.05 and 43,639,559.07 is: 65,469,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,903,505.07 : 194,884,341.05 = 43,639,559.07 : x
  2. Step 2: Convert to fraction form
    129,903,505.07/194,884,341.05 = 43,639,559.07/x
  3. Step 3: Cross multiply
    129,903,505.07x = 194,884,341.05 × 43,639,559.07
  4. Step 4: Simplify right side
    129,903,505.07x = 8,504,666,712,851,303
  5. Step 5: Solve for x
    x = 8,504,666,712,851,303/129,903,505.07
  6. Step 6: Final answer
    x = 65,469,108.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.