Home / 7,127,702.40-9,836,049.60-3,908,438.40

Finding the Fourth Proportional to 7,127,702.40, 9,836,049.60 and 3,908,438.40

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Solution

The fourth proportional to 7,127,702.40, 9,836,049.60 and 3,908,438.40 is: 5,393,546.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127,702.40 : 9,836,049.60 = 3,908,438.40 : x
  2. Step 2: Convert to fraction form
    7,127,702.40/9,836,049.60 = 3,908,438.40/x
  3. Step 3: Cross multiply
    7,127,702.40x = 9,836,049.60 × 3,908,438.40
  4. Step 4: Simplify right side
    7,127,702.40x = 38,443,593,960,944.64
  5. Step 5: Solve for x
    x = 38,443,593,960,944.64/7,127,702.40
  6. Step 6: Final answer
    x = 5,393,546.45

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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.