Home / 85,217,265.80-127,825,898.70-81,816,043.40

Finding the Fourth Proportional to 85,217,265.80, 127,825,898.70 and 81,816,043.40

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Solution

The fourth proportional to 85,217,265.80, 127,825,898.70 and 81,816,043.40 is: 122,724,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,217,265.80 : 127,825,898.70 = 81,816,043.40 : x
  2. Step 2: Convert to fraction form
    85,217,265.80/127,825,898.70 = 81,816,043.40/x
  3. Step 3: Cross multiply
    85,217,265.80x = 127,825,898.70 × 81,816,043.40
  4. Step 4: Simplify right side
    85,217,265.80x = 10,458,209,275,683,204
  5. Step 5: Solve for x
    x = 10,458,209,275,683,204/85,217,265.80
  6. Step 6: Final answer
    x = 122,724,065.10

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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.