Home / 103,236,012.72-142,469,457.03-56,190,813.30

Finding the Fourth Proportional to 103,236,012.72, 142,469,457.03 and 56,190,813.30

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Solution

The fourth proportional to 103,236,012.72, 142,469,457.03 and 56,190,813.30 is: 77,545,368.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,236,012.72 : 142,469,457.03 = 56,190,813.30 : x
  2. Step 2: Convert to fraction form
    103,236,012.72/142,469,457.03 = 56,190,813.30/x
  3. Step 3: Cross multiply
    103,236,012.72x = 142,469,457.03 × 56,190,813.30
  4. Step 4: Simplify right side
    103,236,012.72x = 8,005,474,660,925,102
  5. Step 5: Solve for x
    x = 8,005,474,660,925,102/103,236,012.72
  6. Step 6: Final answer
    x = 77,545,368.62

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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.