Home / 145,538,322.78-200,841,845.58-79,458,818.88

Finding the Fourth Proportional to 145,538,322.78, 200,841,845.58 and 79,458,818.88

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Solution

The fourth proportional to 145,538,322.78, 200,841,845.58 and 79,458,818.88 is: 109,652,602.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,538,322.78 : 200,841,845.58 = 79,458,818.88 : x
  2. Step 2: Convert to fraction form
    145,538,322.78/200,841,845.58 = 79,458,818.88/x
  3. Step 3: Cross multiply
    145,538,322.78x = 200,841,845.58 × 79,458,818.88
  4. Step 4: Simplify right side
    145,538,322.78x = 15,958,655,831,466,148
  5. Step 5: Solve for x
    x = 15,958,655,831,466,148/145,538,322.78
  6. Step 6: Final answer
    x = 109,652,602.33

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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.