Home / 256,590,685.86-354,102,614.73-145,079,131.29

Finding the Fourth Proportional to 256,590,685.86, 354,102,614.73 and 145,079,131.29

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Solution

The fourth proportional to 256,590,685.86, 354,102,614.73 and 145,079,131.29 is: 200,213,423.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,590,685.86 : 354,102,614.73 = 145,079,131.29 : x
  2. Step 2: Convert to fraction form
    256,590,685.86/354,102,614.73 = 145,079,131.29/x
  3. Step 3: Cross multiply
    256,590,685.86x = 354,102,614.73 × 145,079,131.29
  4. Step 4: Simplify right side
    256,590,685.86x = 51,372,899,732,545,960
  5. Step 5: Solve for x
    x = 51,372,899,732,545,960/256,590,685.86
  6. Step 6: Final answer
    x = 200,213,423.81

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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.