Home / 144,770,038.56-199,784,072.70-78,690,495.60

Finding the Fourth Proportional to 144,770,038.56, 199,784,072.70 and 78,690,495.60

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Solution

The fourth proportional to 144,770,038.56, 199,784,072.70 and 78,690,495.60 is: 108,593,655.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,770,038.56 : 199,784,072.70 = 78,690,495.60 : x
  2. Step 2: Convert to fraction form
    144,770,038.56/199,784,072.70 = 78,690,495.60/x
  3. Step 3: Cross multiply
    144,770,038.56x = 199,784,072.70 × 78,690,495.60
  4. Step 4: Simplify right side
    144,770,038.56x = 15,721,107,693,749,428
  5. Step 5: Solve for x
    x = 15,721,107,693,749,428/144,770,038.56
  6. Step 6: Final answer
    x = 108,593,655.50

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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.