Home / 442,673,243.80-664,009,865.70-135,964,864.60

Finding the Fourth Proportional to 442,673,243.80, 664,009,865.70 and 135,964,864.60

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Solution

The fourth proportional to 442,673,243.80, 664,009,865.70 and 135,964,864.60 is: 203,947,296.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,673,243.80 : 664,009,865.70 = 135,964,864.60 : x
  2. Step 2: Convert to fraction form
    442,673,243.80/664,009,865.70 = 135,964,864.60/x
  3. Step 3: Cross multiply
    442,673,243.80x = 664,009,865.70 × 135,964,864.60
  4. Step 4: Simplify right side
    442,673,243.80x = 90,282,011,482,964,688
  5. Step 5: Solve for x
    x = 90,282,011,482,964,688/442,673,243.80
  6. Step 6: Final answer
    x = 203,947,296.90

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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.