Home / 647,404,339.87-893,214,023.46-396,246,901.15

Finding the Fourth Proportional to 647,404,339.87, 893,214,023.46 and 396,246,901.15

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Solution

The fourth proportional to 647,404,339.87, 893,214,023.46 and 396,246,901.15 is: 546,695,885.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,404,339.87 : 893,214,023.46 = 396,246,901.15 : x
  2. Step 2: Convert to fraction form
    647,404,339.87/893,214,023.46 = 396,246,901.15/x
  3. Step 3: Cross multiply
    647,404,339.87x = 893,214,023.46 × 396,246,901.15
  4. Step 4: Simplify right side
    647,404,339.87x = 353,933,288,859,748,416
  5. Step 5: Solve for x
    x = 353,933,288,859,748,416/647,404,339.87
  6. Step 6: Final answer
    x = 546,695,885.50

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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.