Home / 31,561,347.80-47,342,021.70-25,887,978.20

Finding the Fourth Proportional to 31,561,347.80, 47,342,021.70 and 25,887,978.20

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Solution

The fourth proportional to 31,561,347.80, 47,342,021.70 and 25,887,978.20 is: 38,831,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,561,347.80 : 47,342,021.70 = 25,887,978.20 : x
  2. Step 2: Convert to fraction form
    31,561,347.80/47,342,021.70 = 25,887,978.20/x
  3. Step 3: Cross multiply
    31,561,347.80x = 47,342,021.70 × 25,887,978.20
  4. Step 4: Simplify right side
    31,561,347.80x = 1,225,589,225,713,527
  5. Step 5: Solve for x
    x = 1,225,589,225,713,527/31,561,347.80
  6. Step 6: Final answer
    x = 38,831,967.30

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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.