Home / 387,871,529.49-535,274,014.61-211,670,874.21

Finding the Fourth Proportional to 387,871,529.49, 535,274,014.61 and 211,670,874.21

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Solution

The fourth proportional to 387,871,529.49, 535,274,014.61 and 211,670,874.21 is: 292,111,975.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,871,529.49 : 535,274,014.61 = 211,670,874.21 : x
  2. Step 2: Convert to fraction form
    387,871,529.49/535,274,014.61 = 211,670,874.21/x
  3. Step 3: Cross multiply
    387,871,529.49x = 535,274,014.61 × 211,670,874.21
  4. Step 4: Simplify right side
    387,871,529.49x = 113,301,918,614,924,192
  5. Step 5: Solve for x
    x = 113,301,918,614,924,192/387,871,529.49
  6. Step 6: Final answer
    x = 292,111,975.23

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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.