Home / 12,011,373.90-18,008,502.39-5,618,141.10

Finding the Fourth Proportional to 12,011,373.90, 18,008,502.39 and 5,618,141.10

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Solution

The fourth proportional to 12,011,373.90, 18,008,502.39 and 5,618,141.10 is: 8,423,208.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011,373.90 : 18,008,502.39 = 5,618,141.10 : x
  2. Step 2: Convert to fraction form
    12,011,373.90/18,008,502.39 = 5,618,141.10/x
  3. Step 3: Cross multiply
    12,011,373.90x = 18,008,502.39 × 5,618,141.10
  4. Step 4: Simplify right side
    12,011,373.90x = 101,174,307,426,707.22
  5. Step 5: Solve for x
    x = 101,174,307,426,707.22/12,011,373.90
  6. Step 6: Final answer
    x = 8,423,208.56

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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.