Home / 177,853,631.82-266,871,647.87-85,815,862.47

Finding the Fourth Proportional to 177,853,631.82, 266,871,647.87 and 85,815,862.47

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Solution

The fourth proportional to 177,853,631.82, 266,871,647.87 and 85,815,862.47 is: 128,767,798.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,853,631.82 : 266,871,647.87 = 85,815,862.47 : x
  2. Step 2: Convert to fraction form
    177,853,631.82/266,871,647.87 = 85,815,862.47/x
  3. Step 3: Cross multiply
    177,853,631.82x = 266,871,647.87 × 85,815,862.47
  4. Step 4: Simplify right side
    177,853,631.82x = 22,901,820,630,325,108
  5. Step 5: Solve for x
    x = 22,901,820,630,325,108/177,853,631.82
  6. Step 6: Final answer
    x = 128,767,798.53

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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.