Home / 9,989,448.04-13,785,438.34-5,405,769.46

Finding the Fourth Proportional to 9,989,448.04, 13,785,438.34 and 5,405,769.46

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Solution

The fourth proportional to 9,989,448.04, 13,785,438.34 and 5,405,769.46 is: 7,459,961.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,448.04 : 13,785,438.34 = 5,405,769.46 : x
  2. Step 2: Convert to fraction form
    9,989,448.04/13,785,438.34 = 5,405,769.46/x
  3. Step 3: Cross multiply
    9,989,448.04x = 13,785,438.34 × 5,405,769.46
  4. Step 4: Simplify right side
    9,989,448.04x = 74,520,901,571,085.09
  5. Step 5: Solve for x
    x = 74,520,901,571,085.09/9,989,448.04
  6. Step 6: Final answer
    x = 7,459,961.88

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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.