Home / 256,811,301.88-385,136,032.19-84,247,903.96

Finding the Fourth Proportional to 256,811,301.88, 385,136,032.19 and 84,247,903.96

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Solution

The fourth proportional to 256,811,301.88, 385,136,032.19 and 84,247,903.96 is: 126,345,309.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,811,301.88 : 385,136,032.19 = 84,247,903.96 : x
  2. Step 2: Convert to fraction form
    256,811,301.88/385,136,032.19 = 84,247,903.96/x
  3. Step 3: Cross multiply
    256,811,301.88x = 385,136,032.19 × 84,247,903.96
  4. Step 4: Simplify right side
    256,811,301.88x = 32,446,903,451,478,584
  5. Step 5: Solve for x
    x = 32,446,903,451,478,584/256,811,301.88
  6. Step 6: Final answer
    x = 126,345,309.63

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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.