Home / 789,141,075.46-1,088,970,375.49-431,908,124.61

Finding the Fourth Proportional to 789,141,075.46, 1,088,970,375.49 and 431,908,124.61

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Solution

The fourth proportional to 789,141,075.46, 1,088,970,375.49 and 431,908,124.61 is: 596,008,961.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,141,075.46 : 1,088,970,375.49 = 431,908,124.61 : x
  2. Step 2: Convert to fraction form
    789,141,075.46/1,088,970,375.49 = 431,908,124.61/x
  3. Step 3: Cross multiply
    789,141,075.46x = 1,088,970,375.49 × 431,908,124.61
  4. Step 4: Simplify right side
    789,141,075.46x = 470,335,152,633,733,440
  5. Step 5: Solve for x
    x = 470,335,152,633,733,440/789,141,075.46
  6. Step 6: Final answer
    x = 596,008,961.21

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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.