Home / 20,725,353.20-31,088,029.80-7,260,431.60

Finding the Fourth Proportional to 20,725,353.20, 31,088,029.80 and 7,260,431.60

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Solution

The fourth proportional to 20,725,353.20, 31,088,029.80 and 7,260,431.60 is: 10,890,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725,353.20 : 31,088,029.80 = 7,260,431.60 : x
  2. Step 2: Convert to fraction form
    20,725,353.20/31,088,029.80 = 7,260,431.60/x
  3. Step 3: Cross multiply
    20,725,353.20x = 31,088,029.80 × 7,260,431.60
  4. Step 4: Simplify right side
    20,725,353.20x = 225,712,513,941,661.69
  5. Step 5: Solve for x
    x = 225,712,513,941,661.69/20,725,353.20
  6. Step 6: Final answer
    x = 10,890,647.40

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1.5x scale

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.