Home / 13,142,125,362.88-18,137,022,813.44-7,424,426,712.96

Finding the Fourth Proportional to 13,142,125,362.88, 18,137,022,813.44 and 7,424,426,712.96

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Solution

The fourth proportional to 13,142,125,362.88, 18,137,022,813.44 and 7,424,426,712.96 is: 10,246,211,548.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,142,125,362.88 : 18,137,022,813.44 = 7,424,426,712.96 : x
  2. Step 2: Convert to fraction form
    13,142,125,362.88/18,137,022,813.44 = 7,424,426,712.96/x
  3. Step 3: Cross multiply
    13,142,125,362.88x = 18,137,022,813.44 × 7,424,426,712.96
  4. Step 4: Simplify right side
    13,142,125,362.88x = 134,656,996,669,668,868,096
  5. Step 5: Solve for x
    x = 134,656,996,669,668,868,096/13,142,125,362.88
  6. Step 6: Final answer
    x = 10,246,211,548.86

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Double scale
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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.