Home / 789,141,074.97-1,088,970,374.80-431,908,124.11

Finding the Fourth Proportional to 789,141,074.97, 1,088,970,374.80 and 431,908,124.11

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Solution

The fourth proportional to 789,141,074.97, 1,088,970,374.80 and 431,908,124.11 is: 596,008,960.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,141,074.97 : 1,088,970,374.80 = 431,908,124.11 : x
  2. Step 2: Convert to fraction form
    789,141,074.97/1,088,970,374.80 = 431,908,124.11/x
  3. Step 3: Cross multiply
    789,141,074.97x = 1,088,970,374.80 × 431,908,124.11
  4. Step 4: Simplify right side
    789,141,074.97x = 470,335,151,783,627,264
  5. Step 5: Solve for x
    x = 470,335,151,783,627,264/789,141,074.97
  6. Step 6: Final answer
    x = 596,008,960.51

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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.