Home / 12,535,657.20-18,803,485.80-11,459,489.18

Finding the Fourth Proportional to 12,535,657.20, 18,803,485.80 and 11,459,489.18

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Solution

The fourth proportional to 12,535,657.20, 18,803,485.80 and 11,459,489.18 is: 17,189,233.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,535,657.20 : 18,803,485.80 = 11,459,489.18 : x
  2. Step 2: Convert to fraction form
    12,535,657.20/18,803,485.80 = 11,459,489.18/x
  3. Step 3: Cross multiply
    12,535,657.20x = 18,803,485.80 × 11,459,489.18
  4. Step 4: Simplify right side
    12,535,657.20x = 215,478,341,977,366.25
  5. Step 5: Solve for x
    x = 215,478,341,977,366.25/12,535,657.20
  6. Step 6: Final answer
    x = 17,189,233.76

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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.