Home / 28,109,379.16-38,789,333.22-15,549,684.40

Finding the Fourth Proportional to 28,109,379.16, 38,789,333.22 and 15,549,684.40

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Solution

The fourth proportional to 28,109,379.16, 38,789,333.22 and 15,549,684.40 is: 21,457,673.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,109,379.16 : 38,789,333.22 = 15,549,684.40 : x
  2. Step 2: Convert to fraction form
    28,109,379.16/38,789,333.22 = 15,549,684.40/x
  3. Step 3: Cross multiply
    28,109,379.16x = 38,789,333.22 × 15,549,684.40
  4. Step 4: Simplify right side
    28,109,379.16x = 603,161,889,657,435.75
  5. Step 5: Solve for x
    x = 603,161,889,657,435.75/28,109,379.16
  6. Step 6: Final answer
    x = 21,457,673.83

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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.