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Finding the Fourth Proportional to 8,890,210.22, 12,270,463.74 and 5,404,808.40

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Solution

The fourth proportional to 8,890,210.22, 12,270,463.74 and 5,404,808.40 is: 7,459,835.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890,210.22 : 12,270,463.74 = 5,404,808.40 : x
  2. Step 2: Convert to fraction form
    8,890,210.22/12,270,463.74 = 5,404,808.40/x
  3. Step 3: Cross multiply
    8,890,210.22x = 12,270,463.74 × 5,404,808.40
  4. Step 4: Simplify right side
    8,890,210.22x = 66,319,505,493,847.42
  5. Step 5: Solve for x
    x = 66,319,505,493,847.42/8,890,210.22
  6. Step 6: Final answer
    x = 7,459,835.47

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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.