Home / 133,179,384.52-199,266,756.90-78,621,646.60

Finding the Fourth Proportional to 133,179,384.52, 199,266,756.90 and 78,621,646.60

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Solution

The fourth proportional to 133,179,384.52, 199,266,756.90 and 78,621,646.60 is: 117,635,928.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,179,384.52 : 199,266,756.90 = 78,621,646.60 : x
  2. Step 2: Convert to fraction form
    133,179,384.52/199,266,756.90 = 78,621,646.60/x
  3. Step 3: Cross multiply
    133,179,384.52x = 199,266,756.90 × 78,621,646.60
  4. Step 4: Simplify right side
    133,179,384.52x = 15,666,680,540,119,910
  5. Step 5: Solve for x
    x = 15,666,680,540,119,910/133,179,384.52
  6. Step 6: Final answer
    x = 117,635,928.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.