Home / 445,826,720.40-668,740,080.60-417,128,906.40

Finding the Fourth Proportional to 445,826,720.40, 668,740,080.60 and 417,128,906.40

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Solution

The fourth proportional to 445,826,720.40, 668,740,080.60 and 417,128,906.40 is: 625,693,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,826,720.40 : 668,740,080.60 = 417,128,906.40 : x
  2. Step 2: Convert to fraction form
    445,826,720.40/668,740,080.60 = 417,128,906.40/x
  3. Step 3: Cross multiply
    445,826,720.40x = 668,740,080.60 × 417,128,906.40
  4. Step 4: Simplify right side
    445,826,720.40x = 278,950,818,486,525,856
  5. Step 5: Solve for x
    x = 278,950,818,486,525,856/445,826,720.40
  6. Step 6: Final answer
    x = 625,693,359.60

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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.