Home / 9,989,447.04-13,785,436.96-5,405,768.46

Finding the Fourth Proportional to 9,989,447.04, 13,785,436.96 and 5,405,768.46

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Solution

The fourth proportional to 9,989,447.04, 13,785,436.96 and 5,405,768.46 is: 7,459,960.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,447.04 : 13,785,436.96 = 5,405,768.46 : x
  2. Step 2: Convert to fraction form
    9,989,447.04/13,785,436.96 = 5,405,768.46/x
  3. Step 3: Cross multiply
    9,989,447.04x = 13,785,436.96 × 5,405,768.46
  4. Step 4: Simplify right side
    9,989,447.04x = 74,520,880,325,686.28
  5. Step 5: Solve for x
    x = 74,520,880,325,686.28/9,989,447.04
  6. Step 6: Final answer
    x = 7,459,960.50

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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.