Home / 7,171,405.79-9,896,251.27-3,908,150.45

Finding the Fourth Proportional to 7,171,405.79, 9,896,251.27 and 3,908,150.45

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Solution

The fourth proportional to 7,171,405.79, 9,896,251.27 and 3,908,150.45 is: 5,393,090.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171,405.79 : 9,896,251.27 = 3,908,150.45 : x
  2. Step 2: Convert to fraction form
    7,171,405.79/9,896,251.27 = 3,908,150.45/x
  3. Step 3: Cross multiply
    7,171,405.79x = 9,896,251.27 × 3,908,150.45
  4. Step 4: Simplify right side
    7,171,405.79x = 38,676,038,834,622.82
  5. Step 5: Solve for x
    x = 38,676,038,834,622.82/7,171,405.79
  6. Step 6: Final answer
    x = 5,393,090.28

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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.