Home / 8,266,985.20-12,400,823.40-4,427,196.40

Finding the Fourth Proportional to 8,266,985.20, 12,400,823.40 and 4,427,196.40

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Solution

The fourth proportional to 8,266,985.20, 12,400,823.40 and 4,427,196.40 is: 6,640,979.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266,985.20 : 12,400,823.40 = 4,427,196.40 : x
  2. Step 2: Convert to fraction form
    8,266,985.20/12,400,823.40 = 4,427,196.40/x
  3. Step 3: Cross multiply
    8,266,985.20x = 12,400,823.40 × 4,427,196.40
  4. Step 4: Simplify right side
    8,266,985.20x = 54,900,880,713,515.77
  5. Step 5: Solve for x
    x = 54,900,880,713,515.77/8,266,985.20
  6. Step 6: Final answer
    x = 6,640,979.68

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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.