Home / 697,607,998.40-1,046,223,040.80-206,320,318.40

Finding the Fourth Proportional to 697,607,998.40, 1,046,223,040.80 and 206,320,318.40

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Solution

The fourth proportional to 697,607,998.40, 1,046,223,040.80 and 206,320,318.40 is: 309,424,592.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,607,998.40 : 1,046,223,040.80 = 206,320,318.40 : x
  2. Step 2: Convert to fraction form
    697,607,998.40/1,046,223,040.80 = 206,320,318.40/x
  3. Step 3: Cross multiply
    697,607,998.40x = 1,046,223,040.80 × 206,320,318.40
  4. Step 4: Simplify right side
    697,607,998.40x = 215,857,070,895,272,192
  5. Step 5: Solve for x
    x = 215,857,070,895,272,192/697,607,998.40
  6. Step 6: Final answer
    x = 309,424,592.88

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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.