Home / 812,740,336.06-1,121,674,707.18-455,604,571.52

Finding the Fourth Proportional to 812,740,336.06, 1,121,674,707.18 and 455,604,571.52

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Solution

The fourth proportional to 812,740,336.06, 1,121,674,707.18 and 455,604,571.52 is: 628,786,466.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,740,336.06 : 1,121,674,707.18 = 455,604,571.52 : x
  2. Step 2: Convert to fraction form
    812,740,336.06/1,121,674,707.18 = 455,604,571.52/x
  3. Step 3: Cross multiply
    812,740,336.06x = 1,121,674,707.18 × 455,604,571.52
  4. Step 4: Simplify right side
    812,740,336.06x = 511,040,124,349,565,376
  5. Step 5: Solve for x
    x = 511,040,124,349,565,376/812,740,336.06
  6. Step 6: Final answer
    x = 628,786,466.82

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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.