Home / 804,817,998.40-1,207,226,997.60-659,415,740.80

Finding the Fourth Proportional to 804,817,998.40, 1,207,226,997.60 and 659,415,740.80

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Solution

The fourth proportional to 804,817,998.40, 1,207,226,997.60 and 659,415,740.80 is: 989,123,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,817,998.40 : 1,207,226,997.60 = 659,415,740.80 : x
  2. Step 2: Convert to fraction form
    804,817,998.40/1,207,226,997.60 = 659,415,740.80/x
  3. Step 3: Cross multiply
    804,817,998.40x = 1,207,226,997.60 × 659,415,740.80
  4. Step 4: Simplify right side
    804,817,998.40x = 796,064,484,936,163,712
  5. Step 5: Solve for x
    x = 796,064,484,936,163,712/804,817,998.40
  6. Step 6: Final answer
    x = 989,123,611.20

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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.