Home / 8,321,000.90-12,460,506.15-6,641,384.90

Finding the Fourth Proportional to 8,321,000.90, 12,460,506.15 and 6,641,384.90

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Solution

The fourth proportional to 8,321,000.90, 12,460,506.15 and 6,641,384.90 is: 9,945,320.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,000.90 : 12,460,506.15 = 6,641,384.90 : x
  2. Step 2: Convert to fraction form
    8,321,000.90/12,460,506.15 = 6,641,384.90/x
  3. Step 3: Cross multiply
    8,321,000.90x = 12,460,506.15 × 6,641,384.90
  4. Step 4: Simplify right side
    8,321,000.90x = 82,755,017,390,967.14
  5. Step 5: Solve for x
    x = 82,755,017,390,967.14/8,321,000.90
  6. Step 6: Final answer
    x = 9,945,320.09

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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.