Home / 729,844,001.34-1,007,132,433.95-428,441,550.96

Finding the Fourth Proportional to 729,844,001.34, 1,007,132,433.95 and 428,441,550.96

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Solution

The fourth proportional to 729,844,001.34, 1,007,132,433.95 and 428,441,550.96 is: 591,218,645.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,844,001.34 : 1,007,132,433.95 = 428,441,550.96 : x
  2. Step 2: Convert to fraction form
    729,844,001.34/1,007,132,433.95 = 428,441,550.96/x
  3. Step 3: Cross multiply
    729,844,001.34x = 1,007,132,433.95 × 428,441,550.96
  4. Step 4: Simplify right side
    729,844,001.34x = 431,497,382,023,657,728
  5. Step 5: Solve for x
    x = 431,497,382,023,657,728/729,844,001.34
  6. Step 6: Final answer
    x = 591,218,645.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.