Home / 919,508,209.68-1,379,692,781.82-401,871,389.70

Finding the Fourth Proportional to 919,508,209.68, 1,379,692,781.82 and 401,871,389.70

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Solution

The fourth proportional to 919,508,209.68, 1,379,692,781.82 and 401,871,389.70 is: 602,995,220.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,508,209.68 : 1,379,692,781.82 = 401,871,389.70 : x
  2. Step 2: Convert to fraction form
    919,508,209.68/1,379,692,781.82 = 401,871,389.70/x
  3. Step 3: Cross multiply
    919,508,209.68x = 1,379,692,781.82 × 401,871,389.70
  4. Step 4: Simplify right side
    919,508,209.68x = 554,459,055,589,062,272
  5. Step 5: Solve for x
    x = 554,459,055,589,062,272/919,508,209.68
  6. Step 6: Final answer
    x = 602,995,220.44

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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.