Home / 18,757,703.36-28,121,856.24-7,406,648.48

Finding the Fourth Proportional to 18,757,703.36, 28,121,856.24 and 7,406,648.48

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Solution

The fourth proportional to 18,757,703.36, 28,121,856.24 and 7,406,648.48 is: 11,104,168.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,757,703.36 : 28,121,856.24 = 7,406,648.48 : x
  2. Step 2: Convert to fraction form
    18,757,703.36/28,121,856.24 = 7,406,648.48/x
  3. Step 3: Cross multiply
    18,757,703.36x = 28,121,856.24 × 7,406,648.48
  4. Step 4: Simplify right side
    18,757,703.36x = 208,288,703,774,774.53
  5. Step 5: Solve for x
    x = 208,288,703,774,774.53/18,757,703.36
  6. Step 6: Final answer
    x = 11,104,168.77

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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.