Home / 144,512,699.61-199,427,721.42-78,433,199.94

Finding the Fourth Proportional to 144,512,699.61, 199,427,721.42 and 78,433,199.94

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Solution

The fourth proportional to 144,512,699.61, 199,427,721.42 and 78,433,199.94 is: 108,237,922.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,512,699.61 : 199,427,721.42 = 78,433,199.94 : x
  2. Step 2: Convert to fraction form
    144,512,699.61/199,427,721.42 = 78,433,199.94/x
  3. Step 3: Cross multiply
    144,512,699.61x = 199,427,721.42 × 78,433,199.94
  4. Step 4: Simplify right side
    144,512,699.61x = 15,641,754,347,713,480
  5. Step 5: Solve for x
    x = 15,641,754,347,713,480/144,512,699.61
  6. Step 6: Final answer
    x = 108,237,922.27

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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.