Home / 430,187,470.20-645,280,220.88-184,384,722.78

Finding the Fourth Proportional to 430,187,470.20, 645,280,220.88 and 184,384,722.78

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Solution

The fourth proportional to 430,187,470.20, 645,280,220.88 and 184,384,722.78 is: 276,576,662.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,187,470.20 : 645,280,220.88 = 184,384,722.78 : x
  2. Step 2: Convert to fraction form
    430,187,470.20/645,280,220.88 = 184,384,722.78/x
  3. Step 3: Cross multiply
    430,187,470.20x = 645,280,220.88 × 184,384,722.78
  4. Step 4: Simplify right side
    430,187,470.20x = 118,979,814,642,375,968
  5. Step 5: Solve for x
    x = 118,979,814,642,375,968/430,187,470.20
  6. Step 6: Final answer
    x = 276,576,662.23

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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.