Home / 138,452,855.75-191,123,771.45-86,267,674.60

Finding the Fourth Proportional to 138,452,855.75, 191,123,771.45 and 86,267,674.60

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Solution

The fourth proportional to 138,452,855.75, 191,123,771.45 and 86,267,674.60 is: 119,086,047.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452,855.75 : 191,123,771.45 = 86,267,674.60 : x
  2. Step 2: Convert to fraction form
    138,452,855.75/191,123,771.45 = 86,267,674.60/x
  3. Step 3: Cross multiply
    138,452,855.75x = 191,123,771.45 × 86,267,674.60
  4. Step 4: Simplify right side
    138,452,855.75x = 16,487,803,323,342,030
  5. Step 5: Solve for x
    x = 16,487,803,323,342,030/138,452,855.75
  6. Step 6: Final answer
    x = 119,086,047.27

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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.