Home / 12,763,538.91-19,145,475.09-4,243,875.21

Finding the Fourth Proportional to 12,763,538.91, 19,145,475.09 and 4,243,875.21

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Solution

The fourth proportional to 12,763,538.91, 19,145,475.09 and 4,243,875.21 is: 6,365,868.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763,538.91 : 19,145,475.09 = 4,243,875.21 : x
  2. Step 2: Convert to fraction form
    12,763,538.91/19,145,475.09 = 4,243,875.21/x
  3. Step 3: Cross multiply
    12,763,538.91x = 19,145,475.09 × 4,243,875.21
  4. Step 4: Simplify right side
    12,763,538.91x = 81,251,007,118,123.52
  5. Step 5: Solve for x
    x = 81,251,007,118,123.52/12,763,538.91
  6. Step 6: Final answer
    x = 6,365,868.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.