Home / 8,321,359.20-12,482,038.80-6,977,666.40

Finding the Fourth Proportional to 8,321,359.20, 12,482,038.80 and 6,977,666.40

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Solution

The fourth proportional to 8,321,359.20, 12,482,038.80 and 6,977,666.40 is: 10,466,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,359.20 : 12,482,038.80 = 6,977,666.40 : x
  2. Step 2: Convert to fraction form
    8,321,359.20/12,482,038.80 = 6,977,666.40/x
  3. Step 3: Cross multiply
    8,321,359.20x = 12,482,038.80 × 6,977,666.40
  4. Step 4: Simplify right side
    8,321,359.20x = 87,095,502,738,256.33
  5. Step 5: Solve for x
    x = 87,095,502,738,256.33/8,321,359.20
  6. Step 6: Final answer
    x = 10,466,499.60

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Double scale
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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.