Home / 8,076,139.80-12,114,209.70-7,162,848.60

Finding the Fourth Proportional to 8,076,139.80, 12,114,209.70 and 7,162,848.60

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Solution

The fourth proportional to 8,076,139.80, 12,114,209.70 and 7,162,848.60 is: 10,744,272.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076,139.80 : 12,114,209.70 = 7,162,848.60 : x
  2. Step 2: Convert to fraction form
    8,076,139.80/12,114,209.70 = 7,162,848.60/x
  3. Step 3: Cross multiply
    8,076,139.80x = 12,114,209.70 × 7,162,848.60
  4. Step 4: Simplify right side
    8,076,139.80x = 86,772,249,989,751.41
  5. Step 5: Solve for x
    x = 86,772,249,989,751.41/8,076,139.80
  6. Step 6: Final answer
    x = 10,744,272.90

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Similar ratio
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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.