Home / 714,327,507,923.45-985,109,806,282.90-521,333,986,013.70

Finding the Fourth Proportional to 714,327,507,923.45, 985,109,806,282.90 and 521,333,986,013.70

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Solution

The fourth proportional to 714,327,507,923.45, 985,109,806,282.90 and 521,333,986,013.70 is: 718,957,643,761.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,327,507,923.45 : 985,109,806,282.90 = 521,333,986,013.70 : x
  2. Step 2: Convert to fraction form
    714,327,507,923.45/985,109,806,282.90 = 521,333,986,013.70/x
  3. Step 3: Cross multiply
    714,327,507,923.45x = 985,109,806,282.90 × 521,333,986,013.70
  4. Step 4: Simplify right side
    714,327,507,923.45x = 513,571,221,970,648,146,378,752
  5. Step 5: Solve for x
    x = 513,571,221,970,648,146,378,752/714,327,507,923.45
  6. Step 6: Final answer
    x = 718,957,643,761.47

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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.