Home / 407,781,257.79-611,976,510.36-276,311,805.51

Finding the Fourth Proportional to 407,781,257.79, 611,976,510.36 and 276,311,805.51

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Solution

The fourth proportional to 407,781,257.79, 611,976,510.36 and 276,311,805.51 is: 414,674,120.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,781,257.79 : 611,976,510.36 = 276,311,805.51 : x
  2. Step 2: Convert to fraction form
    407,781,257.79/611,976,510.36 = 276,311,805.51/x
  3. Step 3: Cross multiply
    407,781,257.79x = 611,976,510.36 × 276,311,805.51
  4. Step 4: Simplify right side
    407,781,257.79x = 169,096,334,507,280,832
  5. Step 5: Solve for x
    x = 169,096,334,507,280,832/407,781,257.79
  6. Step 6: Final answer
    x = 414,674,120.69

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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.