Home / 470,529,715.79-649,327,424.30-258,831,999.55

Finding the Fourth Proportional to 470,529,715.79, 649,327,424.30 and 258,831,999.55

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Solution

The fourth proportional to 470,529,715.79, 649,327,424.30 and 258,831,999.55 is: 357,186,188.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,529,715.79 : 649,327,424.30 = 258,831,999.55 : x
  2. Step 2: Convert to fraction form
    470,529,715.79/649,327,424.30 = 258,831,999.55/x
  3. Step 3: Cross multiply
    470,529,715.79x = 649,327,424.30 × 258,831,999.55
  4. Step 4: Simplify right side
    470,529,715.79x = 168,066,715,589,679,456
  5. Step 5: Solve for x
    x = 168,066,715,589,679,456/470,529,715.79
  6. Step 6: Final answer
    x = 357,186,188.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.