Home / 465,428,765.60-698,143,148.40-206,368,992.80

Finding the Fourth Proportional to 465,428,765.60, 698,143,148.40 and 206,368,992.80

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Solution

The fourth proportional to 465,428,765.60, 698,143,148.40 and 206,368,992.80 is: 309,553,489.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,428,765.60 : 698,143,148.40 = 206,368,992.80 : x
  2. Step 2: Convert to fraction form
    465,428,765.60/698,143,148.40 = 206,368,992.80/x
  3. Step 3: Cross multiply
    465,428,765.60x = 698,143,148.40 × 206,368,992.80
  4. Step 4: Simplify right side
    465,428,765.60x = 144,075,098,365,528,928
  5. Step 5: Solve for x
    x = 144,075,098,365,528,928/465,428,765.60
  6. Step 6: Final answer
    x = 309,553,489.20

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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.