Home / 9,579,035.28-13,218,881.31-5,228,152.78

Finding the Fourth Proportional to 9,579,035.28, 13,218,881.31 and 5,228,152.78

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Solution

The fourth proportional to 9,579,035.28, 13,218,881.31 and 5,228,152.78 is: 7,214,748.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,579,035.28 : 13,218,881.31 = 5,228,152.78 : x
  2. Step 2: Convert to fraction form
    9,579,035.28/13,218,881.31 = 5,228,152.78/x
  3. Step 3: Cross multiply
    9,579,035.28x = 13,218,881.31 × 5,228,152.78
  4. Step 4: Simplify right side
    9,579,035.28x = 69,110,331,069,366.55
  5. Step 5: Solve for x
    x = 69,110,331,069,366.55/9,579,035.28
  6. Step 6: Final answer
    x = 7,214,748.57

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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.