Home / 144,501,316.92-199,411,921.35-78,421,797.66

Finding the Fourth Proportional to 144,501,316.92, 199,411,921.35 and 78,421,797.66

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Solution

The fourth proportional to 144,501,316.92, 199,411,921.35 and 78,421,797.66 is: 108,222,137.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,501,316.92 : 199,411,921.35 = 78,421,797.66 : x
  2. Step 2: Convert to fraction form
    144,501,316.92/199,411,921.35 = 78,421,797.66/x
  3. Step 3: Cross multiply
    144,501,316.92x = 199,411,921.35 × 78,421,797.66
  4. Step 4: Simplify right side
    144,501,316.92x = 15,638,241,347,101,532
  5. Step 5: Solve for x
    x = 15,638,241,347,101,532/144,501,316.92
  6. Step 6: Final answer
    x = 108,222,137.21

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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.