Home / 940,141,858.50-1,296,028,389.30-657,005,238.68

Finding the Fourth Proportional to 940,141,858.50, 1,296,028,389.30 and 657,005,238.68

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Solution

The fourth proportional to 940,141,858.50, 1,296,028,389.30 and 657,005,238.68 is: 905,711,657.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,141,858.50 : 1,296,028,389.30 = 657,005,238.68 : x
  2. Step 2: Convert to fraction form
    940,141,858.50/1,296,028,389.30 = 657,005,238.68/x
  3. Step 3: Cross multiply
    940,141,858.50x = 1,296,028,389.30 × 657,005,238.68
  4. Step 4: Simplify right side
    940,141,858.50x = 851,497,441,248,102,400
  5. Step 5: Solve for x
    x = 851,497,441,248,102,400/940,141,858.50
  6. Step 6: Final answer
    x = 905,711,657.82

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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.