Home / 10,502,790.80-15,754,186.20-5,725,216.40

Finding the Fourth Proportional to 10,502,790.80, 15,754,186.20 and 5,725,216.40

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Solution

The fourth proportional to 10,502,790.80, 15,754,186.20 and 5,725,216.40 is: 8,587,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502,790.80 : 15,754,186.20 = 5,725,216.40 : x
  2. Step 2: Convert to fraction form
    10,502,790.80/15,754,186.20 = 5,725,216.40/x
  3. Step 3: Cross multiply
    10,502,790.80x = 15,754,186.20 × 5,725,216.40
  4. Step 4: Simplify right side
    10,502,790.80x = 90,196,125,200,893.69
  5. Step 5: Solve for x
    x = 90,196,125,200,893.69/10,502,790.80
  6. Step 6: Final answer
    x = 8,587,824.60

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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.