Home / 869,743,149.48-1,304,818,996.84-287,477,332.72

Finding the Fourth Proportional to 869,743,149.48, 1,304,818,996.84 and 287,477,332.72

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Solution

The fourth proportional to 869,743,149.48, 1,304,818,996.84 and 287,477,332.72 is: 431,283,517.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,743,149.48 : 1,304,818,996.84 = 287,477,332.72 : x
  2. Step 2: Convert to fraction form
    869,743,149.48/1,304,818,996.84 = 287,477,332.72/x
  3. Step 3: Cross multiply
    869,743,149.48x = 1,304,818,996.84 × 287,477,332.72
  4. Step 4: Simplify right side
    869,743,149.48x = 375,105,884,889,968,576
  5. Step 5: Solve for x
    x = 375,105,884,889,968,576/869,743,149.48
  6. Step 6: Final answer
    x = 431,283,517.57

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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.