Home / 940,142,949.60-1,296,029,903.82-657,006,340.68

Finding the Fourth Proportional to 940,142,949.60, 1,296,029,903.82 and 657,006,340.68

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Solution

The fourth proportional to 940,142,949.60, 1,296,029,903.82 and 657,006,340.68 is: 905,713,184.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,142,949.60 : 1,296,029,903.82 = 657,006,340.68 : x
  2. Step 2: Convert to fraction form
    940,142,949.60/1,296,029,903.82 = 657,006,340.68/x
  3. Step 3: Cross multiply
    940,142,949.60x = 1,296,029,903.82 × 657,006,340.68
  4. Step 4: Simplify right side
    940,142,949.60x = 851,499,864,520,630,400
  5. Step 5: Solve for x
    x = 851,499,864,520,630,400/940,142,949.60
  6. Step 6: Final answer
    x = 905,713,184.24

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1.5x scale

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.