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Finding the Fourth Proportional to 834,978,821.76, 1,152,239,206.41 and 463,724,767.98

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Solution

The fourth proportional to 834,978,821.76, 1,152,239,206.41 and 463,724,767.98 is: 639,922,648.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,978,821.76 : 1,152,239,206.41 = 463,724,767.98 : x
  2. Step 2: Convert to fraction form
    834,978,821.76/1,152,239,206.41 = 463,724,767.98/x
  3. Step 3: Cross multiply
    834,978,821.76x = 1,152,239,206.41 × 463,724,767.98
  4. Step 4: Simplify right side
    834,978,821.76x = 534,321,858,649,936,640
  5. Step 5: Solve for x
    x = 534,321,858,649,936,640/834,978,821.76
  6. Step 6: Final answer
    x = 639,922,648.01

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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.