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Finding the Fourth Proportional to 266,170,574.75, 398,898,978.35 and 207,154,216.94

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Solution

The fourth proportional to 266,170,574.75, 398,898,978.35 and 207,154,216.94 is: 310,453,571.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,170,574.75 : 398,898,978.35 = 207,154,216.94 : x
  2. Step 2: Convert to fraction form
    266,170,574.75/398,898,978.35 = 207,154,216.94/x
  3. Step 3: Cross multiply
    266,170,574.75x = 398,898,978.35 × 207,154,216.94
  4. Step 4: Simplify right side
    266,170,574.75x = 82,633,605,495,230,000
  5. Step 5: Solve for x
    x = 82,633,605,495,230,000/266,170,574.75
  6. Step 6: Final answer
    x = 310,453,571.26

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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.