Home / 12,405,801.40-17,120,015.69-6,899,056.09

Finding the Fourth Proportional to 12,405,801.40, 17,120,015.69 and 6,899,056.09

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Solution

The fourth proportional to 12,405,801.40, 17,120,015.69 and 6,899,056.09 is: 9,520,702.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405,801.40 : 17,120,015.69 = 6,899,056.09 : x
  2. Step 2: Convert to fraction form
    12,405,801.40/17,120,015.69 = 6,899,056.09/x
  3. Step 3: Cross multiply
    12,405,801.40x = 17,120,015.69 × 6,899,056.09
  4. Step 4: Simplify right side
    12,405,801.40x = 118,111,948,506,990.06
  5. Step 5: Solve for x
    x = 118,111,948,506,990.06/12,405,801.40
  6. Step 6: Final answer
    x = 9,520,702.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.