Home / 886,463,997.60-1,329,695,996.40-478,317,309.60

Finding the Fourth Proportional to 886,463,997.60, 1,329,695,996.40 and 478,317,309.60

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Solution

The fourth proportional to 886,463,997.60, 1,329,695,996.40 and 478,317,309.60 is: 717,475,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,463,997.60 : 1,329,695,996.40 = 478,317,309.60 : x
  2. Step 2: Convert to fraction form
    886,463,997.60/1,329,695,996.40 = 478,317,309.60/x
  3. Step 3: Cross multiply
    886,463,997.60x = 1,329,695,996.40 × 478,317,309.60
  4. Step 4: Simplify right side
    886,463,997.60x = 636,016,611,583,939,328
  5. Step 5: Solve for x
    x = 636,016,611,583,939,328/886,463,997.60
  6. Step 6: Final answer
    x = 717,475,964.40

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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.