Home / 9,278,539.70-12,803,769.47-5,148,309.09

Finding the Fourth Proportional to 9,278,539.70, 12,803,769.47 and 5,148,309.09

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Solution

The fourth proportional to 9,278,539.70, 12,803,769.47 and 5,148,309.09 is: 7,104,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278,539.70 : 12,803,769.47 = 5,148,309.09 : x
  2. Step 2: Convert to fraction form
    9,278,539.70/12,803,769.47 = 5,148,309.09/x
  3. Step 3: Cross multiply
    9,278,539.70x = 12,803,769.47 × 5,148,309.09
  4. Step 4: Simplify right side
    9,278,539.70x = 65,917,762,770,938.07
  5. Step 5: Solve for x
    x = 65,917,762,770,938.07/9,278,539.70
  6. Step 6: Final answer
    x = 7,104,325.13

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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.