Home / 907,871,918.67-1,252,824,538.11-505,964,281.38

Finding the Fourth Proportional to 907,871,918.67, 1,252,824,538.11 and 505,964,281.38

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Solution

The fourth proportional to 907,871,918.67, 1,252,824,538.11 and 505,964,281.38 is: 698,209,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,871,918.67 : 1,252,824,538.11 = 505,964,281.38 : x
  2. Step 2: Convert to fraction form
    907,871,918.67/1,252,824,538.11 = 505,964,281.38/x
  3. Step 3: Cross multiply
    907,871,918.67x = 1,252,824,538.11 × 505,964,281.38
  4. Step 4: Simplify right side
    907,871,918.67x = 633,884,467,120,056,576
  5. Step 5: Solve for x
    x = 633,884,467,120,056,576/907,871,918.67
  6. Step 6: Final answer
    x = 698,209,135.10

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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.