Home / 13,306,663.58-18,363,434.90-7,804,007.21

Finding the Fourth Proportional to 13,306,663.58, 18,363,434.90 and 7,804,007.21

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Solution

The fourth proportional to 13,306,663.58, 18,363,434.90 and 7,804,007.21 is: 10,769,670.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306,663.58 : 18,363,434.90 = 7,804,007.21 : x
  2. Step 2: Convert to fraction form
    13,306,663.58/18,363,434.90 = 7,804,007.21/x
  3. Step 3: Cross multiply
    13,306,663.58x = 18,363,434.90 × 7,804,007.21
  4. Step 4: Simplify right side
    13,306,663.58x = 143,308,378,359,965.62
  5. Step 5: Solve for x
    x = 143,308,378,359,965.62/13,306,663.58
  6. Step 6: Final answer
    x = 10,769,670.21

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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.