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Finding the Fourth Proportional to 631,673,998.40, 947,510,997.60 and 631,673,998.40

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Solution

The fourth proportional to 631,673,998.40, 947,510,997.60 and 631,673,998.40 is: 947,510,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,673,998.40 : 947,510,997.60 = 631,673,998.40 : x
  2. Step 2: Convert to fraction form
    631,673,998.40/947,510,997.60 = 631,673,998.40/x
  3. Step 3: Cross multiply
    631,673,998.40x = 947,510,997.60 × 631,673,998.40
  4. Step 4: Simplify right side
    631,673,998.40x = 598,518,060,381,964,800
  5. Step 5: Solve for x
    x = 598,518,060,381,964,800/631,673,998.40
  6. Step 6: Final answer
    x = 947,510,997.60

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Half scale
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Double scale
Find fourth proportional to 631,673,999.40, 947,510,999.10 and 631,673,999.40
Similar ratio
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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.