Home / 484,259,563.20-726,389,344.80-290,389,886.40

Finding the Fourth Proportional to 484,259,563.20, 726,389,344.80 and 290,389,886.40

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Solution

The fourth proportional to 484,259,563.20, 726,389,344.80 and 290,389,886.40 is: 435,584,829.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,259,563.20 : 726,389,344.80 = 290,389,886.40 : x
  2. Step 2: Convert to fraction form
    484,259,563.20/726,389,344.80 = 290,389,886.40/x
  3. Step 3: Cross multiply
    484,259,563.20x = 726,389,344.80 × 290,389,886.40
  4. Step 4: Simplify right side
    484,259,563.20x = 210,936,119,318,642,400
  5. Step 5: Solve for x
    x = 210,936,119,318,642,400/484,259,563.20
  6. Step 6: Final answer
    x = 435,584,829.60

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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.