Home / 400,384,131.60-600,576,197.40-314,387,792.40

Finding the Fourth Proportional to 400,384,131.60, 600,576,197.40 and 314,387,792.40

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Solution

The fourth proportional to 400,384,131.60, 600,576,197.40 and 314,387,792.40 is: 471,581,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,384,131.60 : 600,576,197.40 = 314,387,792.40 : x
  2. Step 2: Convert to fraction form
    400,384,131.60/600,576,197.40 = 314,387,792.40/x
  3. Step 3: Cross multiply
    400,384,131.60x = 600,576,197.40 × 314,387,792.40
  4. Step 4: Simplify right side
    400,384,131.60x = 188,813,824,868,572,608
  5. Step 5: Solve for x
    x = 188,813,824,868,572,608/400,384,131.60
  6. Step 6: Final answer
    x = 471,581,688.60

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1.5x scale

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.