Home / 10,125,881.39-13,973,715.89-5,479,666.57

Finding the Fourth Proportional to 10,125,881.39, 13,973,715.89 and 5,479,666.57

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Solution

The fourth proportional to 10,125,881.39, 13,973,715.89 and 5,479,666.57 is: 7,561,939.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125,881.39 : 13,973,715.89 = 5,479,666.57 : x
  2. Step 2: Convert to fraction form
    10,125,881.39/13,973,715.89 = 5,479,666.57/x
  3. Step 3: Cross multiply
    10,125,881.39x = 13,973,715.89 × 5,479,666.57
  4. Step 4: Simplify right side
    10,125,881.39x = 76,571,303,821,110.81
  5. Step 5: Solve for x
    x = 76,571,303,821,110.81/10,125,881.39
  6. Step 6: Final answer
    x = 7,561,939.63

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1.5x scale

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.