Home / 47,481,320.96-71,221,868.64-31,189,443.20

Finding the Fourth Proportional to 47,481,320.96, 71,221,868.64 and 31,189,443.20

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Solution

The fourth proportional to 47,481,320.96, 71,221,868.64 and 31,189,443.20 is: 46,784,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,481,320.96 : 71,221,868.64 = 31,189,443.20 : x
  2. Step 2: Convert to fraction form
    47,481,320.96/71,221,868.64 = 31,189,443.20/x
  3. Step 3: Cross multiply
    47,481,320.96x = 71,221,868.64 × 31,189,443.20
  4. Step 4: Simplify right side
    47,481,320.96x = 2,221,370,426,545,141.25
  5. Step 5: Solve for x
    x = 2,221,370,426,545,141.25/47,481,320.96
  6. Step 6: Final answer
    x = 46,784,090.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.