Home / 455,343,421.87-628,373,789.73-246,499,411.15

Finding the Fourth Proportional to 455,343,421.87, 628,373,789.73 and 246,499,411.15

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Solution

The fourth proportional to 455,343,421.87, 628,373,789.73 and 246,499,411.15 is: 340,169,115.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,343,421.87 : 628,373,789.73 = 246,499,411.15 : x
  2. Step 2: Convert to fraction form
    455,343,421.87/628,373,789.73 = 246,499,411.15/x
  3. Step 3: Cross multiply
    455,343,421.87x = 628,373,789.73 × 246,499,411.15
  4. Step 4: Simplify right side
    455,343,421.87x = 154,893,769,146,164,576
  5. Step 5: Solve for x
    x = 154,893,769,146,164,576/455,343,421.87
  6. Step 6: Final answer
    x = 340,169,115.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.