Home / 387,871,546.98-535,274,038.79-211,670,891.71

Finding the Fourth Proportional to 387,871,546.98, 535,274,038.79 and 211,670,891.71

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Solution

The fourth proportional to 387,871,546.98, 535,274,038.79 and 211,670,891.71 is: 292,111,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,871,546.98 : 535,274,038.79 = 211,670,891.71 : x
  2. Step 2: Convert to fraction form
    387,871,546.98/535,274,038.79 = 211,670,891.71/x
  3. Step 3: Cross multiply
    387,871,546.98x = 535,274,038.79 × 211,670,891.71
  4. Step 4: Simplify right side
    387,871,546.98x = 113,301,933,099,892,432
  5. Step 5: Solve for x
    x = 113,301,933,099,892,432/387,871,546.98
  6. Step 6: Final answer
    x = 292,111,999.40

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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.