Home / 679,210,918.77-937,314,242.06-385,871,583.09

Finding the Fourth Proportional to 679,210,918.77, 937,314,242.06 and 385,871,583.09

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Solution

The fourth proportional to 679,210,918.77, 937,314,242.06 and 385,871,583.09 is: 532,504,587.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,210,918.77 : 937,314,242.06 = 385,871,583.09 : x
  2. Step 2: Convert to fraction form
    679,210,918.77/937,314,242.06 = 385,871,583.09/x
  3. Step 3: Cross multiply
    679,210,918.77x = 937,314,242.06 × 385,871,583.09
  4. Step 4: Simplify right side
    679,210,918.77x = 361,682,930,434,566,272
  5. Step 5: Solve for x
    x = 361,682,930,434,566,272/679,210,918.77
  6. Step 6: Final answer
    x = 532,504,587.96

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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.