Home / 280,475,133.20-420,733,846.88-83,723,004.16

Finding the Fourth Proportional to 280,475,133.20, 420,733,846.88 and 83,723,004.16

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Solution

The fourth proportional to 280,475,133.20, 420,733,846.88 and 83,723,004.16 is: 125,590,818.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,475,133.20 : 420,733,846.88 = 83,723,004.16 : x
  2. Step 2: Convert to fraction form
    280,475,133.20/420,733,846.88 = 83,723,004.16/x
  3. Step 3: Cross multiply
    280,475,133.20x = 420,733,846.88 × 83,723,004.16
  4. Step 4: Simplify right side
    280,475,133.20x = 35,225,101,612,587,040
  5. Step 5: Solve for x
    x = 35,225,101,612,587,040/280,475,133.20
  6. Step 6: Final answer
    x = 125,590,818.73

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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.