Home / 8,076,820.80-12,103,421.40-6,872,221.20

Finding the Fourth Proportional to 8,076,820.80, 12,103,421.40 and 6,872,221.20

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Solution

The fourth proportional to 8,076,820.80, 12,103,421.40 and 6,872,221.20 is: 10,298,283.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076,820.80 : 12,103,421.40 = 6,872,221.20 : x
  2. Step 2: Convert to fraction form
    8,076,820.80/12,103,421.40 = 6,872,221.20/x
  3. Step 3: Cross multiply
    8,076,820.80x = 12,103,421.40 × 6,872,221.20
  4. Step 4: Simplify right side
    8,076,820.80x = 83,177,389,137,613.69
  5. Step 5: Solve for x
    x = 83,177,389,137,613.69/8,076,820.80
  6. Step 6: Final answer
    x = 10,298,283.35

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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.