Home / 472,392,665.40-708,588,998.10-386,228,364.60

Finding the Fourth Proportional to 472,392,665.40, 708,588,998.10 and 386,228,364.60

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Solution

The fourth proportional to 472,392,665.40, 708,588,998.10 and 386,228,364.60 is: 579,342,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,665.40 : 708,588,998.10 = 386,228,364.60 : x
  2. Step 2: Convert to fraction form
    472,392,665.40/708,588,998.10 = 386,228,364.60/x
  3. Step 3: Cross multiply
    472,392,665.40x = 708,588,998.10 × 386,228,364.60
  4. Step 4: Simplify right side
    472,392,665.40x = 273,677,169,909,715,520
  5. Step 5: Solve for x
    x = 273,677,169,909,715,520/472,392,665.40
  6. Step 6: Final answer
    x = 579,342,546.90

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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.