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Finding the Fourth Proportional to 976,902,406.60, 1,465,353,609.90 and 970,099,961.80

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Solution

The fourth proportional to 976,902,406.60, 1,465,353,609.90 and 970,099,961.80 is: 1,455,149,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,902,406.60 : 1,465,353,609.90 = 970,099,961.80 : x
  2. Step 2: Convert to fraction form
    976,902,406.60/1,465,353,609.90 = 970,099,961.80/x
  3. Step 3: Cross multiply
    976,902,406.60x = 1,465,353,609.90 × 970,099,961.80
  4. Step 4: Simplify right side
    976,902,406.60x = 1,421,539,480,987,482,112
  5. Step 5: Solve for x
    x = 1,421,539,480,987,482,112/976,902,406.60
  6. Step 6: Final answer
    x = 1,455,149,942.70

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Double scale
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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.