Home / 18,590,730.12-25,655,978.88-10,330,761.60

Finding the Fourth Proportional to 18,590,730.12, 25,655,978.88 and 10,330,761.60

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Solution

The fourth proportional to 18,590,730.12, 25,655,978.88 and 10,330,761.60 is: 14,256,879.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590,730.12 : 25,655,978.88 = 10,330,761.60 : x
  2. Step 2: Convert to fraction form
    18,590,730.12/25,655,978.88 = 10,330,761.60/x
  3. Step 3: Cross multiply
    18,590,730.12x = 25,655,978.88 × 10,330,761.60
  4. Step 4: Simplify right side
    18,590,730.12x = 265,045,801,423,915
  5. Step 5: Solve for x
    x = 265,045,801,423,915/18,590,730.12
  6. Step 6: Final answer
    x = 14,256,879.62

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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.