Home / 266,117,009.40-399,175,514.10-262,533,828.60

Finding the Fourth Proportional to 266,117,009.40, 399,175,514.10 and 262,533,828.60

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Solution

The fourth proportional to 266,117,009.40, 399,175,514.10 and 262,533,828.60 is: 393,800,742.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,117,009.40 : 399,175,514.10 = 262,533,828.60 : x
  2. Step 2: Convert to fraction form
    266,117,009.40/399,175,514.10 = 262,533,828.60/x
  3. Step 3: Cross multiply
    266,117,009.40x = 399,175,514.10 × 262,533,828.60
  4. Step 4: Simplify right side
    266,117,009.40x = 104,797,076,000,046,288
  5. Step 5: Solve for x
    x = 104,797,076,000,046,288/266,117,009.40
  6. Step 6: Final answer
    x = 393,800,742.90

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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.