Home / 144,760,907.55-199,771,378.31-78,681,558.21

Finding the Fourth Proportional to 144,760,907.55, 199,771,378.31 and 78,681,558.21

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Solution

The fourth proportional to 144,760,907.55, 199,771,378.31 and 78,681,558.21 is: 108,581,270.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,760,907.55 : 199,771,378.31 = 78,681,558.21 : x
  2. Step 2: Convert to fraction form
    144,760,907.55/199,771,378.31 = 78,681,558.21/x
  3. Step 3: Cross multiply
    144,760,907.55x = 199,771,378.31 × 78,681,558.21
  4. Step 4: Simplify right side
    144,760,907.55x = 15,718,323,331,761,270
  5. Step 5: Solve for x
    x = 15,718,323,331,761,270/144,760,907.55
  6. Step 6: Final answer
    x = 108,581,270.99

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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.