Home / 55,145,709.20-82,718,563.80-43,724,320.40

Finding the Fourth Proportional to 55,145,709.20, 82,718,563.80 and 43,724,320.40

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Solution

The fourth proportional to 55,145,709.20, 82,718,563.80 and 43,724,320.40 is: 65,586,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,145,709.20 : 82,718,563.80 = 43,724,320.40 : x
  2. Step 2: Convert to fraction form
    55,145,709.20/82,718,563.80 = 43,724,320.40/x
  3. Step 3: Cross multiply
    55,145,709.20x = 82,718,563.80 × 43,724,320.40
  4. Step 4: Simplify right side
    55,145,709.20x = 3,616,812,986,619,041.50
  5. Step 5: Solve for x
    x = 3,616,812,986,619,041.50/55,145,709.20
  6. Step 6: Final answer
    x = 65,586,480.60

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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.