Home / 1,087,668,403.80-1,631,502,605.70-269,780,704.80

Finding the Fourth Proportional to 1,087,668,403.80, 1,631,502,605.70 and 269,780,704.80

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Solution

The fourth proportional to 1,087,668,403.80, 1,631,502,605.70 and 269,780,704.80 is: 404,671,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,668,403.80 : 1,631,502,605.70 = 269,780,704.80 : x
  2. Step 2: Convert to fraction form
    1,087,668,403.80/1,631,502,605.70 = 269,780,704.80/x
  3. Step 3: Cross multiply
    1,087,668,403.80x = 1,631,502,605.70 × 269,780,704.80
  4. Step 4: Simplify right side
    1,087,668,403.80x = 440,147,922,848,782,528
  5. Step 5: Solve for x
    x = 440,147,922,848,782,528/1,087,668,403.80
  6. Step 6: Final answer
    x = 404,671,057.20

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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.