Home / 31,490,693.80-47,236,040.70-13,315,411.60

Finding the Fourth Proportional to 31,490,693.80, 47,236,040.70 and 13,315,411.60

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Solution

The fourth proportional to 31,490,693.80, 47,236,040.70 and 13,315,411.60 is: 19,973,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,490,693.80 : 47,236,040.70 = 13,315,411.60 : x
  2. Step 2: Convert to fraction form
    31,490,693.80/47,236,040.70 = 13,315,411.60/x
  3. Step 3: Cross multiply
    31,490,693.80x = 47,236,040.70 × 13,315,411.60
  4. Step 4: Simplify right side
    31,490,693.80x = 628,967,324,274,852.12
  5. Step 5: Solve for x
    x = 628,967,324,274,852.12/31,490,693.80
  6. Step 6: Final answer
    x = 19,973,117.40

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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.