Home / 465,428,193.60-698,142,290.40-206,368,420.80

Finding the Fourth Proportional to 465,428,193.60, 698,142,290.40 and 206,368,420.80

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Solution

The fourth proportional to 465,428,193.60, 698,142,290.40 and 206,368,420.80 is: 309,552,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,428,193.60 : 698,142,290.40 = 206,368,420.80 : x
  2. Step 2: Convert to fraction form
    465,428,193.60/698,142,290.40 = 206,368,420.80/x
  3. Step 3: Cross multiply
    465,428,193.60x = 698,142,290.40 × 206,368,420.80
  4. Step 4: Simplify right side
    465,428,193.60x = 144,074,521,963,543,008
  5. Step 5: Solve for x
    x = 144,074,521,963,543,008/465,428,193.60
  6. Step 6: Final answer
    x = 309,552,631.20

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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.