Home / 869,743,151.48-1,304,818,999.84-287,477,334.72

Finding the Fourth Proportional to 869,743,151.48, 1,304,818,999.84 and 287,477,334.72

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Solution

The fourth proportional to 869,743,151.48, 1,304,818,999.84 and 287,477,334.72 is: 431,283,520.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,743,151.48 : 1,304,818,999.84 = 287,477,334.72 : x
  2. Step 2: Convert to fraction form
    869,743,151.48/1,304,818,999.84 = 287,477,334.72/x
  3. Step 3: Cross multiply
    869,743,151.48x = 1,304,818,999.84 × 287,477,334.72
  4. Step 4: Simplify right side
    869,743,151.48x = 375,105,888,366,019,328
  5. Step 5: Solve for x
    x = 375,105,888,366,019,328/869,743,151.48
  6. Step 6: Final answer
    x = 431,283,520.57

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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.