Home / 1,247,505,852.61-1,721,571,681.49-690,598,199.89

Finding the Fourth Proportional to 1,247,505,852.61, 1,721,571,681.49 and 690,598,199.89

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Solution

The fourth proportional to 1,247,505,852.61, 1,721,571,681.49 and 690,598,199.89 is: 953,033,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,505,852.61 : 1,721,571,681.49 = 690,598,199.89 : x
  2. Step 2: Convert to fraction form
    1,247,505,852.61/1,721,571,681.49 = 690,598,199.89/x
  3. Step 3: Cross multiply
    1,247,505,852.61x = 1,721,571,681.49 × 690,598,199.89
  4. Step 4: Simplify right side
    1,247,505,852.61x = 1,188,914,304,222,887,168
  5. Step 5: Solve for x
    x = 1,188,914,304,222,887,168/1,247,505,852.61
  6. Step 6: Final answer
    x = 953,033,047.29

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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.