Home / 1,275,509,761.76-1,913,264,664.96-306,161,377.76

Finding the Fourth Proportional to 1,275,509,761.76, 1,913,264,664.96 and 306,161,377.76

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Solution

The fourth proportional to 1,275,509,761.76, 1,913,264,664.96 and 306,161,377.76 is: 459,242,072.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,509,761.76 : 1,913,264,664.96 = 306,161,377.76 : x
  2. Step 2: Convert to fraction form
    1,275,509,761.76/1,913,264,664.96 = 306,161,377.76/x
  3. Step 3: Cross multiply
    1,275,509,761.76x = 1,913,264,664.96 × 306,161,377.76
  4. Step 4: Simplify right side
    1,275,509,761.76x = 585,767,745,843,678,336
  5. Step 5: Solve for x
    x = 585,767,745,843,678,336/1,275,509,761.76
  6. Step 6: Final answer
    x = 459,242,072.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.