Home / 507,168,138.60-761,035,643.10-215,985,709.80

Finding the Fourth Proportional to 507,168,138.60, 761,035,643.10 and 215,985,709.80

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Solution

The fourth proportional to 507,168,138.60, 761,035,643.10 and 215,985,709.80 is: 324,099,270.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,168,138.60 : 761,035,643.10 = 215,985,709.80 : x
  2. Step 2: Convert to fraction form
    507,168,138.60/761,035,643.10 = 215,985,709.80/x
  3. Step 3: Cross multiply
    507,168,138.60x = 761,035,643.10 × 215,985,709.80
  4. Step 4: Simplify right side
    507,168,138.60x = 164,372,823,558,052,992
  5. Step 5: Solve for x
    x = 164,372,823,558,052,992/507,168,138.60
  6. Step 6: Final answer
    x = 324,099,270.14

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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.