Home / 20,453,273.61-28,225,486.31-11,285,913.93

Finding the Fourth Proportional to 20,453,273.61, 28,225,486.31 and 11,285,913.93

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Solution

The fourth proportional to 20,453,273.61, 28,225,486.31 and 11,285,913.93 is: 15,574,543.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453,273.61 : 28,225,486.31 = 11,285,913.93 : x
  2. Step 2: Convert to fraction form
    20,453,273.61/28,225,486.31 = 11,285,913.93/x
  3. Step 3: Cross multiply
    20,453,273.61x = 28,225,486.31 × 11,285,913.93
  4. Step 4: Simplify right side
    20,453,273.61x = 318,550,409,070,623.69
  5. Step 5: Solve for x
    x = 318,550,409,070,623.69/20,453,273.61
  6. Step 6: Final answer
    x = 15,574,543.97

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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.