Home / 696,891,902.88-1,045,348,938.74-387,963,084.45

Finding the Fourth Proportional to 696,891,902.88, 1,045,348,938.74 and 387,963,084.45

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Solution

The fourth proportional to 696,891,902.88, 1,045,348,938.74 and 387,963,084.45 is: 581,950,797.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,891,902.88 : 1,045,348,938.74 = 387,963,084.45 : x
  2. Step 2: Convert to fraction form
    696,891,902.88/1,045,348,938.74 = 387,963,084.45/x
  3. Step 3: Cross multiply
    696,891,902.88x = 1,045,348,938.74 × 387,963,084.45
  4. Step 4: Simplify right side
    696,891,902.88x = 405,556,798,600,104,512
  5. Step 5: Solve for x
    x = 405,556,798,600,104,512/696,891,902.88
  6. Step 6: Final answer
    x = 581,950,797.43

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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.