Home / 6,820,121.60-10,255,065.60-5,725,260.80

Finding the Fourth Proportional to 6,820,121.60, 10,255,065.60 and 5,725,260.80

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Solution

The fourth proportional to 6,820,121.60, 10,255,065.60 and 5,725,260.80 is: 8,608,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820,121.60 : 10,255,065.60 = 5,725,260.80 : x
  2. Step 2: Convert to fraction form
    6,820,121.60/10,255,065.60 = 5,725,260.80/x
  3. Step 3: Cross multiply
    6,820,121.60x = 10,255,065.60 × 5,725,260.80
  4. Step 4: Simplify right side
    6,820,121.60x = 58,712,925,081,108.48
  5. Step 5: Solve for x
    x = 58,712,925,081,108.48/6,820,121.60
  6. Step 6: Final answer
    x = 8,608,779.80

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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.