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Finding the Fourth Proportional to 9,113,704.70, 13,670,557.05 and 8,971,987.10

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Solution

The fourth proportional to 9,113,704.70, 13,670,557.05 and 8,971,987.10 is: 13,457,980.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,113,704.70 : 13,670,557.05 = 8,971,987.10 : x
  2. Step 2: Convert to fraction form
    9,113,704.70/13,670,557.05 = 8,971,987.10/x
  3. Step 3: Cross multiply
    9,113,704.70x = 13,670,557.05 × 8,971,987.10
  4. Step 4: Simplify right side
    9,113,704.70x = 122,652,061,502,414.06
  5. Step 5: Solve for x
    x = 122,652,061,502,414.06/9,113,704.70
  6. Step 6: Final answer
    x = 13,457,980.65

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Double scale
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Similar ratio
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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.