Home / 387,042,978-534,102,079.90-226,121,877.06

Finding the Fourth Proportional to 387,042,978, 534,102,079.90 and 226,121,877.06

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Solution

The fourth proportional to 387,042,978, 534,102,079.90 and 226,121,877.06 is: 312,038,124.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,042,978 : 534,102,079.90 = 226,121,877.06 : x
  2. Step 2: Convert to fraction form
    387,042,978/534,102,079.90 = 226,121,877.06/x
  3. Step 3: Cross multiply
    387,042,978x = 534,102,079.90 × 226,121,877.06
  4. Step 4: Simplify right side
    387,042,978x = 120,772,164,848,638,096
  5. Step 5: Solve for x
    x = 120,772,164,848,638,096/387,042,978
  6. Step 6: Final answer
    x = 312,038,124.22

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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.